Bad Cabin Air Filter Symptom

A cabin air filter is designed to prevent unhealthy and harmful bacteria or particles from entering the vehicle’s passenger cabin. 

A new or properly cleaned cabin air filter only allows fresh air molecules to enter the heating and air conditioning system of an automobile which keeps the inside environment of a vehicle safe and healthy for passengers. But with time, the cabin air filter gets old and its performance deteriorates. 

Therefore, a cabin air filter must be replaced or cleaned periodically to achieve the purpose for which it has been designed. There are a few bad cabin air filter symptom associated with an old or poorly performing cabin air filter which are given below and have been discussed in detail one by one.

Bad Cabin Air Filter Symptom

Following is comprehensive list of Bad Cabin Air Filter Symptoms

• Reduced airflow from the HVAC system

• Strange odors inside the vehicle

• Dust and debris blowing into the cabin

• Poor defrost performance

• Increase in allergens and irritants inside the vehicle

• Diminished fuel efficiency, air conditioning performance, and cause of foggy windows

• Strange noises coming from the HVAC system

Reduced airflow from the HVAC system

Several types of cabin air filters are available in the market. Famous and common cabin air filters are activated carbon cabin air filters and HEPA (high-efficiency particulate air) cabin air filters.

Reduced Air Flow in HEPA cabin air filter: HEPA is a kind of mechanical air filter that does not allow particles of size larger than its pores to enter the heating and air conditioning. The particles (dust and other allergens etc.) that do not enter the HVAC system of the vehicle are collected at the exterior of the filter. 

With time, the filtered debris and dust particles increase and fill in the pores of the cabin air filter. In this way, the area or passage for the fresh air molecules to enter the filter pores decreases and hence the incoming airflow reduces.

Reduced Air Flow in activated carbon cabin air filter: Activated carbon or activated charcoal cabin air filter are a kind of chemical air filter that has an activated carbon layer also known as charcoal which reacts with the air contaminants (volatile organic compounds, pollen particles, etc.) and binds with them. 

This phenomenon reduces the passage for air molecules to enter the heating and air conditioning system of the vehicle and hence reduces the airflow inside the passenger’s cabin.

Strange odors inside the vehicle

Strange or unpleasant odor in the case of HEPA filters: Two types of cabin air filters are used commonly. HEPA cabin air filters are the most common ones whereas activated carbon cabin air filters are also used in several vehicles. 

The HEPA cabin air filter being the mechanical air filter is not able to stop foul and unpleasant odors from entering the HVAC system of a vehicle. 

So, if an unpleasant or foul odor is entering the HVAC system from the outside environment, then it is not a symptom of a weak or bad cabin air filter. But in a few cases, a HEPA cabin air filter can become the source of bad odors when it gets old. 

This is because moisture and other dirt particles filtered at the exterior surface of a cabin air filter mix with each other and stimulate bacterial growth. If this is the case, a filter then must be cleaned or replaced to get rid of such unpleasant odors. 

Although, few cabin air filters have antimicrobial properties that prevent bacterial growth and keep foul odors away.

Strange or unpleasant odor in the case of activated carbon or activated charcoal cabin air filter: Activated carbon cabin air filter is a kind of chemical air filter which unlike a HEPA cabin air filter can also prevent foul or unpleasant odors from passing through it. 

With time, the activated carbon binds with the molecules of gaseous particles and the surface of the cabin air filter gets covered by a layer of those entrapped molecules. Hence, the efficiency of such filters decreases with time and their ability to prevent foul odors from entering the system diminishes. Such filters cannot be cleaned and reused so therefore they must be replaced.

Dust and debris blowing into the cabin

A cabin air filter is designed to prevent dust particles and other pollutants from entering the HVAC system of a vehicle. Different types of filters are available in the market but the most common ones have activated carbon cabin air filters and HEPA cabin air filters. 

All these filters are rated on some standards such as MERV (Minimum Efficiency Reporting Values), MPR (Microparticle Performance Rating), FPR (Filter Performance Rating), and beta rating. 

A cabin air filter with the lowest rating filters out the fewest particles whereas the one with the highest rating prevents almost all unwanted particles from entering the HVAC system. 

Hence, if dust and debris are blowing into the cabin, it can be said that the installed filter might be of low ranking on a given standard. The second reason for dust and debris to enter the system can be an old cabin air filter whose sides are not properly seated in their place. 

Poor defrost performance

If the cabin air filter is not clean and clogged up with dust and other pollutants, it will not allow the appropriate and required amount of airflow through it.

 In the case of low airflow into the heating and air conditioning system of a vehicle, the air conditioning system becomes colder and colder and frosting starts to happen. Therefore, an old air filter will affect the defrosting performance of the HVAC unit of the vehicle.

Increase in allergens and irritants inside the vehicle

The air inside the vehicle’s passenger compartment must stay fresh and this will only happen if the heating, ventilation, and air conditioning system of the vehicle is working appropriately and efficiently. 

If proper ventilation is not being carried out due to the blockage of air at the cabin air filter, dust, and other pollen or allergic particles will start to accumulate in the passenger compartment of the vehicle. Therefore, if someone is not feeling at ease in a vehicle, the condition of the cabin air filter must be checked.

Diminished air conditioning performance & cause of foggy windows

An appropriate and compatible cabin air filter must allow air molecules to enter the HVAC system of a vehicle with almost no restriction. But a filter clogged with dust and other particles will not be able to do so and to meet the airflow requirement, the engine would need to put in more work. 

This extra work takes more power from the engine’s crankshaft and hence the mileage and fuel efficiency of the engine decreases. Additionally, when a cabin air filter is not clean, the airflow into the system decreases and disturbs the airflow balance across the system. 

Due to this the air conditioning and ventilation performance of the system starts to fade away. Furthermore, a poorly performing heating, ventilation, and air conditioning system will not be able to maintain the humidity requirements of the passenger area of the vehicle which might make the windows foggy and unclean.

Strange noises coming from the HVAC system

Although noise generation from cabin air filters is not a common phenomenon it may happen in some cases due to the following reasons. 

If the cabin air filter is not seated properly at its place, the air will enter the HVAC system from its sides and will make the process noisy. Therefore, if the HVAC system is noisy, the cabin air filter must be checked for its proper seating or installation.

The second reason for noises being generated from the HVAC system is the clogged cabin air filter. A cabin air filter whose pores have been blocked by filtered dust and other pollutants will not allow air to pass easily. This phenomenon will generate whistling and strange noises from the HVAC system of the vehicle.

Concluding Bad Cabin Air Filter Symptoms

A bad cabin air filter symptoms are discussed in details above and symptoms like bad odor, poor air quality, poorly performing AC system and foggy windows are all common found symptoms of bad cabin air filter. 

These issues can also be caused by other factors so you may need to work very comprehensively to solve these problems. If you have any question do message us or make a comment about it.

What is a Cabin Air Filter (working, location & cost)

Everyone like to have a clean, fresh and odorless air in their car cabin. It always feel good to sit in car cabin that just feel fresh and pleasent. This is only possible if you have a functional cabin air filter.

If you does not have much information about this then this is for you. This is a complete beginner guide on cabin air filter explaining What is a cabin air filter? what does a cabin air filter do? location cabin air filter and cost of cabin air filter.

What is a Cabin Air Filter?

As the name indicates that cabin air filter is an air filter which is installed in vehicles to block the entry of pollutants and other contaminants from the environment into the heating, ventilation and air conditioning system of your car. 

Air filters are made up with a wide variety of materials that vary from application to application. Aluminum, paper, foam, carbon, steel, fiberglass or plastic etc. can be used in the making of an air filter. 

Air filters are usually categorized into two types. The first type is pleated air filters and the second type of air filters are called non-pleated air filters. 

A cabin air filter is usually a pleated or folded unit usually made up of multi-fiber cotton or any engineered material suitable for air filtering. 

Cabin air filters and usually all the air filters are made folded or pleated to increase the surface area. Increased surface area of a cabin air filter enable it to capture more contaminants and particles from air therefore a pleated or folded air filter has a longer life than that of a fiberglass air filter. 

Furthermore, pleated air filters can filter smaller particles as compared to non-pleated air filters and hence are considered efficient. However, pleated air filters are usually blamed to restrict the air flow.

What does a Cabin Air Filter do?

Like an engine filter that restricts the entry of air contaminants and other pollutants into the suction side of the engine. 

A cabin air filter is used to filter the air contaminants, road soot, exhaust gases, pollen particles and several other impurities to enter the air conditioning and ventilation system of a car or a vehicle to keep its internal environment healthy and safe for the passengers. 

A car or vehicle with dirty filter or a filter that needs replacement will provide an uncomforting experience of driving and diminished efficiency of defrosting, heating, ventilation and air conditioning. 

Furthermore, a cabin air filter keeps the inside environment of a car or vehicle fresh and free from any foul odor. Hence, a clean and new or efficient cabin air filter will increase the airflow, defrosting and air conditioning ability and windows will not fog up easily.

Where is the Cabin Air Filter?

The location of cabin air filter can vary with the change in model of a car and the layout of the heating ventilation and air conditioning system. 

The cabin air filter is usually located at the start of ducts that take air into the passenger area of a car or a vehicle. 

It is installed directly behind the cover of intake channel. In few cars or vehicles, the cabin air filter is placed vertically while in the other the filter is placed horizontally.

We will discuss the different locations of a cabin air filter in the vehicles

• Most of the vehicles have their air filters behind the glove box. One might need to disassemble the glovebox cover to see it. 

• To see the procedure for the removal of glovebox cover and find the exact location of cabin air filter, the operation or user manual of a vehicle should be consulted.

source endurance

• In few models of the cars and vehicles, major components of heating and air conditioning system can be found under the hood or bonnet of the car. 

• So, to find the location of cabin air filter, one have to open the hinged cover of the bonnet. The exact location of the cabin air filter can be found using the vehicle’s manual.

source wikimedia

• Cabin air filter of few vehicles can be found under the dash or near the accelerator and break pedal. Such type of cabin air filter are not easily accessible.

source Honda of bay County

How often should Cabin Air Filter be replaced?

Cabin air filter life is about 12000 miles or one year

Over the time of usage, a cabin air filter becomes filled up with dirt and other contaminants available in the environmental air. 

When this happens, an air filter can no longer do its job for which it has been designed and it must be replaced. There are several signs that indicate the improper and inefficient working of a cabin air filter. 

If you notice a lower air flow through your car or vehicle, or any musty or unpleasant odor or smell in the car’s cabin or haze on the inside of the car windows, then these are all a pretty good signs that it’s a good time to replace the cabin air filter. 

Furthermore, a new cabin air filter is usually clean and have no spots or dust accumulated on it while an old air filter will be dusty and full of spots etc. A cabin air filter needs to be replaced regularly and more often. 

There is no rule of thumb to change or replace the air filter and like many of the other components of the engine, the replacement of cabin air filter is also coupled with the mileage of the vehicle. 

The good practice is to replace the cabin air filter above or every 12000 miles or once a year. 

How much is a Cabin Air Filter?

Cabin air filter cost can be between $15 to $45

The replacement of cabin air filter is not a complex or cumbersome process. The cost of cabin air filter depends upon a few factors i.e. model of the car, cabin air filter manufacturer, quality of cabin air filter and labor cost. 

As discussed in the preceding lines, different cars have different location for cabin air filter. If the air filter is placed is in the hood or behind the glove compartment then the replacement is going to be easy and cheap. 

Whereas in other cases, it might add some extra labor cost to the process. If you are planning to replace the cabin air filter yourself, it will take from few minutes to an hour and cost can be as low as $15 to $45. 

Here is the List of Cabin air filter cost for Most common vehicles.

You can expect to pay anywhere from $15 to $30 for a replacement cabin air filter for a Ford F-150.

• Ford F-150 - Some newer models have cabin air filters, and replacement filters can cost anywhere from $15 to $50.
• RAM Pickup 1500 - Some newer models have cabin air filters, and replacement filters can cost anywhere from $15 to $30. 

• Toyota RAV4 - Most models have cabin air filters, and replacement filters can cost anywhere from $10 to $20. 

• Honda CR-V - Most models have cabin air filters, and replacement filters can cost anywhere from $10 to $20. 

• Toyota Camry - Most models have cabin air filters, and replacement filters can cost anywhere from $10 to $20. 

• Chevrolet Equinox - Most models have cabin air filters, and replacement filters can cost anywhere from $10 to $25. 

• Toyota Corolla - Most models have cabin air filters, and replacement filters can cost anywhere from $10 to $20.

• Chevrolet Silverado 1500 - Some newer models have cabin air filters, and replacement filters can cost anywhere from $15 to $30.

• Honda Civic - Most models have cabin air filters, and replacement filters can cost anywhere from $10 to $20. 

Timing Belt vs Timing Chain : 9 Points Difference

Timing chain is very much like a timing belt when we consider its working. But is totally different when we consider its design, material, life and other aspects. 

So for Timing Belt vs Timing Chain we have develop an article on comparison and different between timing chain and timing belt. Timing belt and timing chain serve a similar purpose in an engine. But there are few factors that separate them as two different choices in the context of engine’s performance.

Timing Belt vs Timing Chain

Material Of Timing Chain and Timing Belt

Starting our timing chain vs timing belt from material of both. A timing belt is a toothed or grooved belt manufactured from high quality rubber whereas a timing chain is made of metallic material like steel specially alloy steel .

Operation In IC Engine

Timing belt is enclosed within a protective cover and runs outside of the engine whereas a timing chain runs inside the engine and needs to be lubricated continuously.

Types Of Timing belt & Timing Chain

Discussing type of each for a comprehensive timing belt vs timing chain. A Timing belts have different types depending upon the shape of their groove. Trapezoidal belts, curvilinear belts and modified curvilinear belts are the common types of timing belts.

From a wide variety of timing chain types roller type timing chain and silent type timing chain are the two most used types for IC engine.

Life In IC Engine

The working life of a timing belt is comparatively lesser than that of a timing chain. A timing belt is usually replaced after 60,000 and 100,000 miles whereas a timing chain needs to be replaced after 80000 to 120000 miles. 

Strength Of Timing Belt vs Timing Chain

Timing chain has higher strength and enhanced wear resistance as compared to the timing belts due to its material. Furthermore, timing chain is not easily susceptible to the physical changes with the change in working temperature or pressure etc. as compared to timing belt.

Preferred Vehicle Type

Timing chain is usually preferred in high mileage vehicles over timing belt due to its strength and longevity of its working life. Mostly, a timing chain will last the life equal to the life of the engine but in many cases it might need to be replaced. Furthermore, timing chain has comparatively lesser problems that develop it in over the time of its usage.

Performance Of Timing Chain vs Timing Belt

The timing chain has the ability to damp the vibrations being induced from the crankshaft and can be used in high power applications whereas timing belt can be efficiently used for low power applications.

Advantage Of Each One Over The Other
One of the major advantages of timing chain is that it does not slip during the transmission of power from camshaft to crankshaft but timing belt slippage is a common problem in timing belt drive. 

An advantage of timing belt over timing chain is that it does not need to be continuously lubricated and it has a silent operation. On the other hand, if the timing chain is not being lubricated appropriately, it will wear out quickly. The operation of the timing chain is a bit noisier than that of timing belt. 

Weight Of The System
The timing chains are heavy as they are made of metals as compared to timing belt which in turn decreases the fuel efficiency of the engine that utilize timing chain.

Last Words For Our Readers

That all for our 9 point work on Timing belt vs Timing Chain. We have tried to deliver best and discuss each and every point that relate timing chain vs timing belt. 

If you thing we have missed any point we mention it in comment or contact us via contact form. We will be happy to hear from you and will publish the modification with your name and profile link.

Serpentine Belt vs Timing Belt : How They are Different

Serpentine Belt vs Timing Belt ? what they do and how they are different. Both of these belts are an important part of an internal combustion engine. Each work closely with other engine parts to enable the smooth and perfect working of IC engines.

Timing belt and serpentine belt are so closely related that most people get confused and usually consider both the same. They are different in there work design, material, life, and importance. 

Serpentine Belt vs Timing Belt

We have developed a comprehensive article on timing belt vs serpentine belt to make you comprehend the basic difference between serpentine belts and timing belts.

timing belt with timing belt tensioner

Working of timing belt and serpentine belt

The belts are primarily designed to transfer power from one rotating part of a machine to another part that needs to be rotated. A timing belt is an important component of an internal combustion engine that connects the crankshaft with the camshaft to operate the exhaust and intake valves of the engine. 

Movement of the crankshaft and camshaft must be well synchronized in an engine and the overall combustion quality, quantity of fuel being supplied for the combustion, and power output of an engine are strongly dependent upon the proper working of a timing belt. 

Similarly, a serpentine belt is used to transfer power from the crankshaft to the other motor-driven parts of the engine such as power steering, alternator, water pump, air pump, and air conditioning system. 

When the engine is turned on, the crankshaft pulley rotates the serpentine belt which in turn rotates all the engine components connected to it. 

A properly working serpentine is quite important for the appropriate functioning of all the aforementioned components. The serpentine belt is also given different names such as alternator belt, fan, accessory drive belt, etc. 

Design comparison for serpentine belt vs timing belt

Comparing the design in the serpentine belt vs the timing belt case makes it very clear how they are different from each other.

Several types of belts are used in an internal combustion engine that depends upon the type of engine and the amount of power to be transferred. The toothed side of the timing belt can have a trapezoidal, curvilinear, or modified curvilinear shape. 

The shape or the design of the toothed side of the timing belt is usually selected after the estimation of the power that a bneedsneed totheetransferr. A few other important factors such as stress concentration, backlash, noise, etc. are also kept under consideration for the designing of a timing belt. 

Furthermore, positive engagement between belt teeth and pulley groove teeth is achieved in the case of the timing belts to enable them to transfer higher torques and eliminate slippage.

Unlike a timing belt, a serpentine belt has multiple V-grooves that travel along the length of the belt. In actuality, serpentine belts are the updated version of V-belts and one can notice that old vehicles had multiple V-belts to operate alternators, air conditioning systems, power steering, etc. 

A serpentine belt replaces multiple V-belts and is quite longer than a normal V-belt. It has an intertwining shape like a serpentine (snake) which helps the serpentine belt to achieve a high wrap angle and the appropriate amount of tension.

The serpentine belt on the IC engine with alternator and idler pulley

Material of the belt

A timing belt is usually made of rubber but the material of a timing belt can vary from application to application. The selection of material is made based on different conditions such as temperature, amount of power to be transferred, and nature of the application. 

Different materials are used in the making of timing belts such as rubber, polyurethane, and fabric. Timing belts made with rubber are quite common (especially in an internal combustion engine) and can be used in a variety of conditions. 

Both natural and synthetic rubber have been used in the making of timing belts and neoprene (a synthetic rubber) has been a quite common material due to its ability to endure severe temperature changes and maintain its flexibility.  

Serpentine belts are made of high-quality rubber. Neoprene rubber, a replacement for natural rubber, is the common material used in the making of serpentine belts. 

Neoprene has been considered a durable and chemically stable material but there are a few disadvantages associated with them e.g. cracks, loss of flexibility at high tempetemperatures cetecreateakage, etc. 

Ethylene Propylene Diene Monomer (EPDM) is another material that is preferred over neoprene in the making serpentine belt due to its longer life span and other associate advantages.

Working Life of each belt

It's important to consider working life for a comprehensive timing bet vs serpentine belt comparison. A timing belt like other parts of an engine has a specific working life and it will wear down with the engine mileage. 

A low engine power, overheating or vibration in the engine, inability to start the engine and a tickling noise from the engine especially when the engine is cold are the timing belt symptoms that need replacement. 

Although, an average-quality timing belt needs to be replaced after 60,000–100,000 miles. But it must also be noted that the working life of a timing belt may vary based on several other factors that can affect its life indirectly such as overheating, unexpected failure, and contact with leaked engine oil, etc. 

The life span of a serpentine belt is dependent upon the material with which it has been made. Serpentine belts made up of neoprene can last a mileage of 50000 miles. Whereas a serpentine belt made from EPDM is considered a better alternative and can last up to 100000 miles. 

Cost comparison for timing belt vs serpentine belt

The cost of a timing belt itself is not very high and a variety of timing belts are available in the market. The average price of a timing belt can vary between $15 and $50.

The cost of a serpentine belt is not very high and a serpentine belt made of neoprene costs between $10 and $30. Whereas the cost of the belt manufactured from good quality EPDM is around S20-S40. 

Furthermore, the price offofrpentinbeltslt varies significantly with the change in the quality, type, and model of the vehicle.

Replacement cost of belt

Although, the price of a timing belt is not very high the replacement cost of a timing belt can be very high compared to its price. 

This is because the timing belt is not easily reachable and a huge amount of disassembling and assembling is required to replace the timing belt.

Furthermore, a few other components that have a similar life span become easily reachable during the replacement process and it is not uncommon to replace them at the time of replacing the timing belt. 

Furthermore, replacing timing belts in small engines is not costly but it can be more expensive in large engines. Hence, a total cost of around $250-$400 should be expected to get a timing belt replaced.

The replacement of a serpentine belt is not a very cumbersome and complex process. Nowadays, modern vehicles have idlers pulleys or tensioners which make the replacement process easier. 

The replacement cost of the serpentine belt may vary with the model of the vehicle and location of the market etc. but the average cost can be around $50-$80.

What happens when the belt fails?

Taking the serpentine belt vs timing belt to next level, we will discuss whappensppen when each of these belts fails during driving.

As a timing belt is usually made of rubber so it will wear down throughout its usage and must be replaced within a suitable duration. 

Its failure or breakage due to any reason will cause the engine to stop as its purpose is to synchronize the movement of inlet and exhaust valves that regularizes the process of combustion in the engine. 

The breakage of the timing belt can also lead to complete engine failure or other untoward situations such as camshaft or cylinder head damage, cylinder wall damage, bent or broken valves, and piston damage. 

Signs of an improperly working serpentine belt are a screeching noise from under the hood, the inability of power steering to perform its operation properly, overheating of the engine, and black smoke from the engine. 

If a serpentine belt breaks down suddenly, the alternator will stop producing electrical power so headlights will turn dim, the battery will die, the power steering will get heavier, the air conditioner will stop working and the water pump will cease to circulate the coolant. 

Therefore, a vehicle with a broken serpentine belt must not be driven for a longer distance as it can have unwanted and costly consequences.  

Conclusion on Serpentine Belt vs Timing Belt 

Based on the above comparison of serpentine belt vs timing belt we can conclude that each belt has its importance, working, and application. The serpentine belt cannot replace the timing belt and the timing belt cannot replace the serpentine belt.

What is a Timing Belt , Serpentine Belt & Timing belt Kit

What is a Timing belt?

Timing belt definition “Timing belt is one of the most important machine elements. It helps to transfer power and rotational motion in a completely synchronized manner”. 

Unlike a simple flat belt or a V-belt, a timing belt has teeth on its inner surface. These teeth are very similar to the gear teeth and they work the same as gear teeth. 

Pulleys used for timing belts also have teeth on them. These pulleys are very much like gears. The timing belt and pulley teeth work together to deliver power and rotational motion in a completely synchronized manner.

Due to their teeth timing belts cannot work on a simple flat belt or V-belt pulleys. Similarly Flat and V-belts cannot be used in place of the timing belt.

To read complete timing belt guide we recommend you our article on Timing Belt Material, Types, Applications, Advantages and Disadvantages

timing belt and timing belt pully

What does a timing belt do?

Timing belt works to deliver mechanical power and rotational motion in a fully synchronized manner. 

In an internal combustion engine timing belt works to deliver a synchronized motion between the engine crankshaft and camshaft. This is the reason that the timing belt is also known as a cambelt.

The engine crankshaft works to reciprocate the piston whereas the camshaft works to open and close the fuel inlet and exhaust gasses outlet valve. 

Synchronization provided by the timing belt ensures that valves opening and closing work perfectly with the piston reciprocating motion.

If synchronization between the crankshaft and camshaft fails due to a bad timing belt then engine working and performance will be highly compromised. 

timing belt on an IC engine

Other than the I.C engine there are other timing belt applications 

When to do Timing Belt Replacement in Engine

Timing belt replacement is something that cannot be delayed once needed. As it is main component that synchronize the engine work, so any issue with it will directly effect the engine performance.

So when to do timing belt replacement? It all depends on three thing.

• Timing belt mileage life of 60,000 to 100,000 miles has been complete

• Timing belt life in years that is of 4 to 6 years is over

• Timing belt is showing any of the following bad symptoms

We recommend you to read our article on Timing belt Replacement, Cost, & Bad Timing Belt Symptoms

What is a Serpentine Belt

Serpentine belt is an other part of car that work with engine crankshaft to deliver power to different car components. 

Serpentine belt connects car air conditioning compressor, alternator, and power steering motor. Serpentine belt take power and rotational motion from engine crankshaft and deliver it to these components so that they can work properly.

Its just like a regular V belt and is made of same material like rubber, urethane, Neoprene, and Polyurethane.

In an engine serpentine belt has multiple V belt groove across its width and can deliver power and rotational motion at quite a high torque.

What does a Serpentine Belt do

Serpentine belt work to deliver power to different car components like air conditioning compressor, engine alternator, and power steering motor.

Without the serpentine belt there will be no power for car air conditioning compressor so it will not work at all. Without the compressor there will be no fluid motion and working of air conditioning unit.

serpentine belt with idler and alternator

Similarly without serpentine belt there will be no power for power steering motor so it will not work either. Without power steering motor it will hard to turn the steering wheel thus very difficult to drive the car.

With bad serpentine belt there will be no power for car alternator and with alternator at stalled there will be no power for charging car battery. Soon battery will be fully discharged and it will be very difficult to start the car.

What is Timing belt Kit

When timing belt replacement is needed, its done by replacing the a complete set of timing belt kit. 

Timing belt kit includes; timing  belt, timing belt idler pully, timing belt tensioner, and water pump.

All these components are recommended to be changed with timing belt as these components will have the same life as of the timing belt and have same life span as of timing belt.

Other than life the new timing belt teeth may not set well with old water pump pulley and thus can compromise the working of engine.

What is timing belt tensioner?

Timing belt tensioner is a part of timing belt kit and engine timing setup. This tensioner help to adjust the tension of the timing belt during installation, inspection, and regular maintenance.

timing belt tensioner with timing belt on it

Timing belt tensioner is just like a flat belt pulley with a spring loaded center bolt. It does not engage the timing belt from its teeth side rather it is in contact with belt from its outer surface.

Position of the tensioner can be adjusted up to few millimeter to adjust the tension of timing belt. Simple rotate the tensioner bolt and adjust its position and tension of timing belt.

What is Timing Chain Kit and Bad Timing Chain Symptoms

Does Timing chains go bad and is so what are the bad timing chain symptoms ? Like all parts of an engine, the timing chain will also subject to wear & tear and will also need replacement to maintain engine performance. 

A timing chain life is usually as long as the any other major engine part life is and it last the entire engine life.

In some cases these timing chains do need early replacement. In those cases there are usually some timing chain symptoms that show the timing chain has gone bad and need replacement. 

These timing chain are always replaced and are available as a complete set known as timing chain kit. So out this article is all about the timing chain kit and bad timing chain symptoms. 

Timing Chain Kit

Engine timing chain is one of the parts of the timing chain kit. The system that manages the engine timing i.e. valve opening and closing on a whole is known as engine timing chain kit. 

The timing chain kit consists of sprockets, timing chain whether single roller or double roller, chain tensioner and sliding rail, seals and other required accessories. All the parts of the timing chain are matched together to attain a smooth and efficient operation.

It is usually suggested that the whole engine timing chain kit must be replaced along with the timing chain because parts of kit from different manufacturer may not work together smoothly. The replacement of whole timing kit will keep the system safe from further defects also. 

To Know about Timing Chain basics read our article on What is a Timing Chain? What Does It Do? and How its Different from Timing Belt and To learn about timing chain kit or bad timing belt symptom read our article on Timing Chain life, Cost and Replacement

What Is A Timing Chain Tensioner?

The proper amount of tension in a timing chain is very important for the engine’s efficient performance. A slack timing chain will result in the improper combustion and untimed valve opening and closing which results in the poor overall engine performance. 

Chain tensioners are used to ensure the appropriate amount of timing chain tension. A tensioner can have a variety of arrangements depending upon its use but mainly there are two types of chain tensioners that are commonly used for this purpose. 

The first of chain tensioner is called as hydraulic chain tensioner. A hydraulic chain tensioner consist of a hydraulic actuator, a lever and a tensioner pulley bearing exerts a suitable amount of hydraulic pressure using a hydraulic pump.  

The second type of chain tensioner is known as mechanical chain tensioner. A mechanical chain tensioner is quite simple in construction and it exerts the right amount of tension on the chain that goes around camshaft and crankshaft sprockets. 

A mechanical chain tensioner uses mechanical springs to attain the desired or appropriate amount of tension. A proper amount of tension also keep the timing chain system from wear and tear and enhances the working cycle of the timing chain system.

Does Timing Chain Needs to be replaced?

The answer to this question is a big Yes! A timing chain is made out of metal but this does not make it invincible and it needs to be replaced like other parts of the engine. But worry not as the replacement of a timing chain is not a routine task. 

But if the life of the timing chain is over, it must be replaced as a preventive measure for the better engine performance. A faulty timing chain may cause a rattling or clattering sound which can be very annoying and detrimental to the engine’s health. Several problems such as damage to the engine valves and pistons can also occur. 

An overused timing chain can become stretched and loose which will affect the operation of engine valves and the quality of combustion and power will also be affected. Hence, the well-timed replacement a defective timing chain is imperative. 

Furthermore, the sprockets must also be replaced with the timing chain because a worn sprocket will not mesh with the chain properly influencing the engine’s performance. 

Timing Chain Symptoms (Bad Timing Chain Symptoms)

A timing chain is an important engine part that links the upper part of the engine i.e. valves and cylinder head to the lower parts of the engine i.e. pistons and crankcase. 

A timing chain is usually replaced after a certain mileage of the engine but its replacement might also become indispensable under certain conditions. Following are the bad timing chain symptoms

• If the engine is not starting or facing difficulty in start, the timing chain must be checked.

• A rattling or clattering sound from the front side of the engine body near the timing chain cover region also indicate a problem in the timing chain. The rattling sound will be loud and easy noticeable in the cold engine as compared to the hot engine. 

• In the idle condition, the engine will vibrate more than normal if the timing chain is loose or out of order.

• As the timing chain run the engine valves hence a problem with the timing chain will surely affect the combustion process in the engine and it will cause misfire and sluggishness.

• As the quality of combustion in an engine is directly related to the proper working of the timing chain therefore reduced fuel economy can also be an indicator of a faulty timing chain.

• Poor engine performance and overheating can also be a sign of malfunctioning timing chain.

Last Words

So that was our writeup for timing chain kit, timing chain tensioner, and bad timing chain symptoms. Its important to know that timing chains are always replaced as a kit and tensioner is an important part of the kit. 

Its also important to know bad timing chain symptoms as their complete failure can be prove harmful for other parts of engine.

If your still have any question as ask them in comments or contact us through the contact form. We will be happy to help you.

Timing Chain life, Cost and Replacement

Timing Chain like timing belts are used to synchronize the engine piston and inlet outlet valves. Like all other mechanical components these chains also get subjected to wear. 

Due to this these timing chains needed to be replaced once their useful life ends. This article is all about the timing chain life, cost, and replacement.

To have general understanding of timing chain read out article on What is a timing chain? and to about about the timing chain kit or bad timing chain symptom read our article on What is Timing Chain Kit and Bad Timing Chain Symptoms

Life of Timing Chain

The timing chains are made of metals and can be used for a very long time. Different types of timing chains can have different life spans. Life of a timing chain in an engine usually depends upon the mileage of a vehicle. 

The normal replacement of a timing chain is done after a mileage of 80,000-120,000 Miles. But there are other important factors that can play a vital role in increasing or decreasing the life of a timing chain. 

• The working life of different types of timing chains whether single or double roller chain or bush chain or toothed chains will be different. Double roller chains as compared to single roller chains have a longer working life.

• The type of material and quality of the chain also play a vital role in increasing or decreasing the life of a timing chain.

• Engine’s working temperature may also affect the life of a timing chain.

• If the timing chain is getting properly lubricated, its life will surely be extended. Proper lubrication refers to the replacement of engine oil on regular basis.

• The choice of proper engine oil and its pressure is also imperative in increasing or decreasing the life of a timing chain. Using the wrong engine oil will cause the timing chain to wear quickly. 

Timing Chain’s Cost

Different type of timing chains came in different price ranges. Its price also changes with the change in the type of vehicle and the quality of timing chain. 

The price of a simple timing chain of a bike or bicycle may vary between US$2 to US$8. 

Whereas the timing chain of car may cost you between US$300 to US$1000 and price may go up with the increasing size of the engine.

Timing Chain Replacement Cost

Timing chain replacement is not an expensive maintenance task. If a problem related to the timing chain has been diagnosed in the engine, the repair is not going to be cheaper. 

The cost of timing chain replacement can vary from US$500 to US$1200 if you are managing the repair yourself. 

On the other hand, the repair can take around US$1,500 to US$4,000 if you visit a professional mechanic. 

Although, the cost of timing chain replacement can vary from case to case but there are several factors that are to be kept in mind that affects the cost of replacement before you go to replace the timing chain of the engine.

• Price of timing chain vary with the quality of timing chain and the model of the vehicle. 

• For some brands, the price of timing chain is lower than the other brands. 

• The quality of the chain must be extremely good as any compromise on it will be equivalent to the compromise on the performance of the engine.

• The labor rate is another important factor that should not go unnoticed. 

• The labor cost for the replacement of the timing chain is going to be comparatively higher as the replacement of the timing chain requires the removal of many engine parts and sometimes engine is taken out of the vehicle for the replacement of timing chain. 

• Usually, the labor cost in suburban areas is lesser than in the areas that are close to the downtown.

• In some of the cases, only the timing chain might be replaced. 

• But, in most of the cases it will not only be the timing chain that would be replaced but other related parts should also be expected to be replaced during the repairing process such sprockets, sprocket bearings, and tensioners etc. 

• Furthermore, it is also recommended to replace the whole timing chain system when repairing or replacing timing chain to avoid any misalignment or error in the meshing of chains and sprockets.

Timing Chain Replacement Procedure

The replacement of the timing chain is a cumbersome process therefore it is strongly recommended to visit a professional mechanic to get it replaced. 

The replacement of timing chain in an engine might change with the change in engine’s model but below is the generic DIY step by step procedure of replacing a faulty or malfunctioning timing chain.

• First of all make sure that your engine is equipped with a timing chain and not timing belt. 

• To make it sure, you can refer to an experienced mechanic or user manual of your vehicle. 

• It is suggested to keep the user manual with you during the replacement process.

• During the process of timing chain replacement, many of the engine parts will be disassembled. 

• In few cases, you may actually need to take out the engine as a whole. 

• For this, referring to the user manual of the vehicle is extremely necessary to see the specific procedures for the vehicle.

• Before starting the replacement process, make sure that the engine is cold and use a degreaser to clean the engine to increase your visibility for any leakage or wear and tear of other components.

• One must refer to the user manual of the vehicle to know the firing order of the engine because the first cylinder in the firing order will need to be checked in a later stage during the process.

• The next step is to disconnect the radiator. To do this, drain the radiator and take the coolant out of it. Afterwards, disconnect the hoses that are connecting radiator and engine. 

• In some engines, it might also be required to drain engine oil and power steering fluid as well.

• Refer to the user manual of the vehicle to remove the belt drives. For serpentine belt, use spring loaded tensioner to remove it.  

• To take out the timing chain, you will need to uncover the engine block. Locate the camshaft and crankshaft using the user manual of the vehicle. 

• Afterwards, install the new timing chain and lubricate the gears before doing so to optimize the timing chain performance. 

• Also replace the crankshaft seal and make sure to compress it appropriately before covering the engine block.

• The last step in the process now is to reconnect the belt drives and cooling system of the engine. 

• Start the engine to observe if there is any leakage. If not, then your engine is ready to drive again.

What is a Timing Chain & What does it do

Timing chain is an integral part of an internal combustion engine ( IC engine). They work to deliver a synchronize rotation motion between engine crank shaft and engine camshaft.

This article is brief introduction of timing chain, what doe timing chain do and how its different from timing belt (timing chain vs timing belt) 

To Know about Timing Chain Cost, Replacement read our article on Timing Chain life, Cost and Replacement and To learn about timing chain kit or bad timing belt symptom read our article on What is Timing Chain Kit and Bad Timing Chain Symptoms

Timing Chain on Internal Combustion Engine

What is a Timing Chain?

A timing chain is used to connect the crankshaft and camshaft with each other to monitor the engine timing. Engine timing refers to the upward and downward movement of the pistons and opening and closing of the fuel inlet and gasses exhaust valves. 

A timing chain is enclosed within the engine and it is lubricated with the engine oil inside the engine. 

Both crankshaft and camshaft usually have sprockets attached at their one end and a timing chain is wrapped across the sprockets to connect them with each other. 

Types of timing chains

There are different types of timing chains which are categorized according to their design. 

The types of timing chains are roller chains, bush chains and toothed chains. Roller chains are further categorized into single roller chain and double roller chain. 

Single roller chain is much like a chain of a bicycle whereas double roller chain have dual gears with a chain row on each gear. Roller chains are the most famous and widely used type of timing chains. 

Roller chains have higher strength, reduced friction, less wear and give better noise and vibration performance. Double roller chains are more durable, long lasting are ideal for performance applications. 

Bush chains are used in heavy and high speed diesel engines whereas toothed chains are not used for heavy duty engines and are also known as silent chains. 

There is also a fourth type of timing chain which is a combination of toothed chain and sleeve chain to enhance the power transmission performance of toothed chain. 

What Does a Timing Chain Do?

Proper combustion is extremely important for the normal and efficient working of an engine. 

Several other factors such as fuel quality, engine temperature and number of power strokes etc. play a vital role in the combustion phenomenon. 

But, the timely opening and closing of exhaust and inlet valves are of extreme importance in enriching the combustion quality. 

In an internal combustion engine, the power generated during the combustion stroke is received at the crankshaft which runs the camshaft. 

The purpose of camshaft is to operate the valves at the suitable rate and this is done by mechanical transmission. 

A timing chain serves this purpose and it is an engine’s component that is used to synchronize the motion of camshaft and crankshaft for the proper and timely opening and closing of the engine’s valves. 

The valves allow appropriate amount of fuel and exhaust gases to enter and leave the engine’s cylinders respectively to produce the required amount of combustion at a specific speed. 

In many vehicles, fuel pump, oil pump and distributor are indirectly being drive by the timing chain. Hence, a sloppy chain can affect the overall performance of the vehicle. 

Furthermore, a timing chain also serves the purpose of a damper i.e. it absorbs the vibrations of crankshaft before transmitting the power to camshaft.

Advantages of Timing Chain Over Timing Belt

• Timing chain made of metal will last longer then timing belt as they are made of rubber

• Timing chain offer more strength than timing belt

• They can handle more engine torque and power as compared to timing belt

• Due to their design, timing chain cannot slip and thus offer much higher performance as compared to timing belt

Timinng Belt Replacement Cost & Bad Timing Belt Symptoms

A Timing belt replacement cost can vary from $300 to $500. Timing belt need replacement when it turn bad. Bad timing belting symptoms includes rough idling, bad engine noise, engine misfiring, and poor engine efficiency.

The timing belt also known as the cambelt or the camshaft belt is a crucial part of an internal combustion engine. 

The working of an IC engine completely depends on the timing belt, as it synchronizes the motion of different engine components. This article is the ultimate guide for IC engine timing belts. 

This article is about the Timing Belt Replacement Cost & bad timing belt symptoms. We will also study different factors that involved in bad timing belts.

Timing Belt

Timing Belt in IC Engine

In internal combustion engine, timing belts are used to deliver a synchronize rotational motion of crankshaft to camshaft. This enables the engine piston and engine fuel inlet and gas outlet valves to work in perfect synchronization. 

Engine Pistons are connected to crank shaft and their reciprocating motion rotates the crankshaft. Now for proper working of engine, the engine inlet value should open and let the fuel enter the combustion chamber at the right time. 

When piston compresses the fuel and combustion starts, both values should be in close condition. After combustion when piston move back the outlet valve should open and let the exhaust gasses out.

Any damage or failure of timing belt can prove very harmful to engine performance and can physically damage engine parts.

To know more We recommend you to read our article on Timing Belt Material, Types, Applications, Advantages and Disadvantages

What happen if timing belt breaks or fail in Engine

If timing belt get damage of fails due to any reason then it can cause follow problems and  issues to the IC engine.

Total Engine Stall

As soon as the timing belt breaks and fails to deliver synchronize motion, the drive will experience total engine stall. There will be no opening and closing of engine valves, so no combustion and no power. 

Broken Engine inlet and outlet valves

Based on the type of engine that is interfering and non interfering engine, there can be partially damaged or completely broken engine inlet and outlet valves.

Damaged Piston

Just like the valves the piston of the engine can get damaged if the timing belt broke during driving. 

Damaged valve seat

Valve seat is that place where inlet and outlet valve set themselves during their close state. In interfering engines piston can impact or strike with the valves and valve seat and damage them badly.

When to change timing belt? (Life of timing belt)

When to change the timing belt depends on the current condition of the belt. If the belt is worn out and it is not performing as per expectations then you can change the timing belt.

The standard useful life of a timing belt is anywhere from 60,000 miles to 100,000 miles or 100,000 to 160,000 kilometers. The life of the timing belt is also calculated in years if you don't drive your vehicle much. 

Belt material degrades over time and the belt needs replacement even if it has not reached the said miles or kilometers. The life of the timing belt is about 4 to 6 years and it is highly recommended to change the belt after 6 years.

How much is a timing belt / How much does timing belt cost?

As far as How much a timing belt or how much does timing belt costs are concerned. It all depends on the specific timing belt you need for your car engine. 

The timing belt does not cost much. A good quality timing belt cost anything between $30 to $50 but usually, they are provided with a complete kit.

The average cost of a timing belt kit is about $100 to $300 or 80 to 250 GBP. This timing belt kit includes a timing belt, timing belt tensioner, idler pulley, and engine water pump. 

Timing belt replacement cost

Timing belt replacement cost can vary between $300 to $500 or 250 to 400 GBP. It Depends on the vehicle make and model, engine make and model, workshop location and labor costs. 

During the timing belt replacement, it's neither the timing belt nor the timing belt kit that involves the major cost. It's the labor that costs the most. 

This makes the cost of the entire process of a timing belt replacement about $400 to $800.

Note: it's just a rough estimation of why most workshops have shown on their web pages. It all depends on where you live and what car model or engine you have.

Timing belt on IC Engine

To know more We recommend you to read our article on Timing Belt , Serpentine Belt & Timing belt Kit

Bad Timing Belt Symptoms

A timing belt is a crucial part of an engine, so its failure can cause serious damage to the engine. Good thing is that several bad timing belt symptoms that highlight the issue before complete belt failure. 

Here are the top 9 bad timing belt symptoms

Check Engine Light

Check engine light can be the first and most important sign of a bad timing belt. A bad timing belt can affect the engine in many different ways. 

If it gets detected by the engine control unit then the check engine light will turn on. This will alarm the driver that something is wrong with the car engine. 

There is no surety that the error is off the timing belt only. So drivers must look for other symptoms too.

Rough idling

If the engine cambelt is worn or not working properly then the engine idling process will be very rough. 

Drive can easily differentiate between normal idling and rough idling just based on vibration and sound. 

During rough idling, there will be a lot of variation in engine RPM where engine RPM will do well below the standard value.

Engine Misfiring

Due to a bad timing belt, the engine will misfire too much. This misfiring will make the engine lose power during driving, especially at the start. 

This is due to the timing belt being responsible for synchronizing motion between the piston and fuel inlet value. 

If synchronization is off then the fuel burning will be affected heavily. This makes the engine misfire.

Bad Engine Noise

With a damaged timing belt there will be some bad engine noises. These noises will be due to a lack of synchronization between the piston and exhaust value. 

The exhaust valve should work in accordance with the engine piston for the timely removal of gasses. 

If the engine moves forward with the exhaust valve closed and gasses intrepid then this will produce a strange knocking and tapping sound in the engine.

Overheated Engine

With a bad timing belt and in a specific case there will be an overheated engine. 

The timing belt is also responsible for rotating the coolant motor and if the timing belt is worn or is slipping then it will affect coolant circulation in the engine. This will surely overheat the engine.

Low Fuel Efficiency

With a lack of synchronization between the fuel inlet and combustion process, there will be a lot of fuel that does unburn. 

This highly affects the fuel efficiency of the engine as not all the fuel used is burned to produce power. 

Extra Emission

With a lack of synchronization between the fuel inlet and combustion process, there will also be a lot of unburnt or partial fuel in exhaust gasses. 

This makes the invisible exhaust visible and thus produces extra emissions too. 

Difficulty in achieving high power

The effect of a bad timing belt became more prominent when the engine tried to run at full power. 

All those factors that were very minute at low power or speed will now have an exponential effect on engine performance.

The engine will not start

There is high chance that the engine will not start due to a bad timing belt. As the belt fails to provide synchronization between the combustion and fuel inlet resulting in a complete failure of the engine combustion process. This will make the engine very difficult to start.

Factors that affect timing belt life

Timing belts are designed for a long life as their proper working is very important and their replacement cost a lot. There are several factors that affect timing belt life and can reduce it significantly.

These factors includes engine oil leak, very high temperature, high working load, timing belt exposed to dust, sand or mud, low quality timing belt material.

Engine oil when leaked into the timing belt section can significantly reduce the timing belt life. Engine oil make belt slippery and serious affect its performance. 

Engine oil will also make the dust stick on the belt thus increasing its wear rate. This will reduce the belt life.

Extremely high temperature will also effect the timing belt life. High temperature can make the belt soft and easy to stretch. This compromises the belt working and its life too.

Last words about Timing belt

Timing belt / cambelt or engine timing belt are one of the most important parts of an IC engine. They work to provide synchronization between engine crankshaft and camshaft. 

So its very important to know all about the timing belt like their life, cost, replacement, bad timing belt symptoms and what can affect the timing belt life.