Symptoms of Clogged catalytic converter

Today, more than 90% of cars run on internal combustion engines (ICE) – and this type of engine can stay here until electric vehicles are fully adopted.  However, this situation can also create harmful toxic chemical compounds that harm the environment. To combat these harmful emissions, car catalytic converters come to rescue. They use precious metals to convert poisonous gases into non-hazardous substances.  Due to the increase in global environmental awareness, this exhaust system component is considered an important invention in the history of automobiles.

Catalytic converters help combat harmful emissions by using precious metals to convert toxic gases into non-hazardous substances.

Symptoms of Clogged catalytic converter 

A clogged catalytic converter is not the same as a chemically worn or damaged as it creates excess exhaust pressure.  Such blockages prevent the engine from “breathing” properly because it restricts exhaust flow – which can further create engine performance problems.

Signs of a clogged catalytic converter:

  • Illuminated fault indicator light

The check engine light reflects you that “I need to see a doctor.” It alerts you to some problems that can make the performance of your engine inadequate and inefficient.

Car Catalytic Converter

The control engine lighting indicates various reasons.  It is suggested to hire a mechanic to diagnose the issue after seeing this warning.

  • Difficulty in starting and stopping the engine

Excessive exhaust pressure can suffocate and cause the engine to stall.  If it gets too congested, you may find your motor running and idle for a few minutes, only to die.

  • Less Fuel-saving and lower engine performance

A clogged catalytic converter prevents your engine from breathing properly.  It can cause a lack of acceleration and overall performance.  Also,  there is a decrease in fuel savings.

  • Unsuccessful emission test

Clogging can cause the inspection engine to burn out, causing you to pass the emission test in many places.  If a clogged cat is detached from the inside, it is unlikely that your car will pass the exhaust gas emission test.

As mentioned earlier, clogging can even lead to the fragmentation of catalyst materials.  If you suspect this damage level, knock the catalytic converter down and listen to the noisy sounds.

Car Catalytic Converter

A clogged catalytic converter can cause the test engine to burn out and cause you to pass an emission test.

Methods of diagnosing car catalytic converter failure

An experienced mechanic will detect a clogged converter by temporarily removing the oxygen sensor or open the exhaust pipe.  If the engine’s performance improves, the catalytic converter is more likely to be the component causing the problem.

You can check the structure of the converter for harmful damage while passing over road debris.

Test for back pressure

Measuring backpressure is another way to confirm your suspicion. All you need is a low-pressure gauge or a kit that tests the primary pressure.

For accurate readings, use a digital manometer or a pressure gauge with different units of measurement.

Car Catalytic Converter

In case your engine has a secondary air injection system, you can disconnect the control valve and install your pressure gauge.  However, for accurate results, connect the control valve to the exhaust system before the converter.

You can also drill a hole along the exhaust pipe to install the pressure gauge.  It is the best option for an old car, where O2 can get damaged.

Ann idle vehicle’s backpressure may vary depending on its year of manufacture, a model of manufacture, and type.  Typically, an idle engine should have a maximum of 1.5 PSI.  Of course, some machines can be upgraded, but the basic rules are 1.5 PSI and below.

When the car is rotated at 2000 RPM and stable at 3 PSI or lower, you probably won’t have problems with your catalytic converter.  If it is variable or exceeds 3 PSI despite having a stable RPM, this is a good indication that the back pressure is increasing.

Resetting the engine increases the pressure, which is normal.  However, at a stable RPM, an abnormal increase in pressure may indicate a possible strain.

Other methods of checking back pressure

You can check the pressure with a vacuum gauge.  Connecting the manometer to a collector vacuum source is much easier than joining the scale to the exhaust.

Car Catalytic Converter

Another way of checking the backpressure is by observing the scanning tool and considering parameters such as the versatile absolute pressure (MAP) and the calculated load.

Replacing or repairing a catalytic converter

The clogged catalytic converter needs replacement.  While catalytic converter cleaner claims the same but you can’t believe everything you read.

Working of the catalytic converter 

The catalytic converter reduces the emissions from the engine using a chemical reaction. There are two main sections. The first is a catalyst with a combination of platinum and rhodium.  It works by breaking down nitric oxides (NOx) into nitrogen and oxygen molecules.

As the exhaust gas moves further, it passes through a second catalyst, a combination of platinum and palladium.  It is where double oxidation takes place – carbon monoxide (CO) and hydrocarbons (HC) are broken down into non-harmful molecules such as carbon dioxide (CO2) and water (H2O).

Car Catalytic Converter

Oxygen (O2) molecules from the first catalytic conversion bind to CO molecules to form CO2.  From a hydrocarbon compound, hydrogen and carbon molecules split and combine with oxygen to form CO2 and H2O.

If your car catalytic converter is damaged or not working correctly, you will not pass the emission test.

After the whole process, no longer harmful exhaust gas reaches the end of the pipe, where it is released into the atmosphere.

The catalytic converter must be in the best condition for your vehicle to pass the emission test.

What could be wrong with your catalytic converter?

Damaged catalytic converters can not only cause your vehicle to pass an emission test but can also damage adjacent parts, resulting in more expensive repairs.

Car Catalytic Converter

Reasons for premature failure of catalytic converters include:

  • Contamination from substances such as antifreeze and oil
  • Depths that damage catalysts
  • Problems with engine performance

Foreign matters such as coolant and oil can leak into the exhaust due to the engine’s high flow problems.  Such contaminants can quickly destroy your car catalytic converter. Besides this, problems with engine performance can also damage your catalytic converter.  If you want to purchase automobiles parts, visit The Auto Parts Shop today and save your money from costly repairs.


Everything you need to know about CV axle

There are a few things that can go wrong in constant velocity (CV) axle assembly.  Leaking grease and everyday wear can make its parts worse.  How do you know if your CV assembly is failing?  Below is a list of negative CV features and other important information.

How do you say if your CV axle is wrong?

cv axle

Here are some of the features that can point to a bad CV shaft:

  • Clicking a sound when you turn

Damages in a CV axle due to frequent use can make the joints lose.  As the external joints are unstable, they may produce a distinct sound described by some people as a click or a pop.  This sound is most noticeable when making sharp or fast curves while driving around corners.

You will hear a strange clicking sound on the vehicle’s side with the damaged CV shaft.

  • Clunking sound when you slow down or accelerate

You may hear abnormalities or knocking sounds from the inner CV joint assembly when you slow down or speed up.

The sound may come from a completely different source, but hearing it should be a cause for concern.

  • Grease exposed to the bottom of the vehicle

The CV boot is something that keeps CV joints lubricated to make them function correctly.  It is made of high-quality rubber that does not break easily.

However, if the boot is damaged, the grease inside it will flatten on the vehicle’s bottom as the axle turns.

  • Trembling while driving
cv axle

A damaged axle shaft or CV joint can affect the balance of the entire assembly as it rotates.  When this happens, the shaft may move excessively.  These vibrations can be intense as you accelerate.

Causes of failure in CV axle

cv axle
  • CV axles and joints can wear out faster than usual if CV boot breaks or cracks.  When this happens, the joints start losing grease and are no longer appropriately lubricated.
  • Moisture, water, and other debris can get inside a broken boot, making CV joints more vulnerable to run out.
  • Joints will fail even prematurely if they are set at an exaggerated angle due to the vehicle’s suspension. 
  • In some cases, CV joints may deteriorate over time.

How long can you spend on a bad CV?

If one of the CV axle joints fails, you may lose control of your vehicle.  It can lead to horrible accidents that can cost lives, so always look for signs of the faulty CV axle and look at your car as soon as you see the red flags.

 What is a CV Axle?

cv axle

The CV axle (also called CV axle shaft and axle shaft) is responsible for moving the torque from the transaxle or difference to the wheels, enabling it to move forward.  There are two CV mixers in its inner and outer ends that allow the CV shaft, which connects to the wheel hub, to transfer power without being affected by the different modes’ conditions.  Oil-soaked rubber boots protect the joints.

Collectively, the shaft, the joints, and the boots make up an assembly of CV axles.

The CV axle is mainly used in front-wheel-drive vehicles to transfer engine power to two driving wheels.

Some of the later cars are equipped with an independent rear, and most four-wheel drive and all-wheel vehicles also have CV axles.  The CV axle improves the quality of ride and vehicle capacity through these suspension systems, especially in off-road areas.

The function of vehicle CV axle

The CV axle is the drivetrain that transmits power from the transaxle or the difference to the steering wheels at a variable angle and the steady rotation speed without increasing the resistance.  It facilitates the transfer of engine power to the wheels without affecting the wheel rotation.

The CV axle stretches from the vehicle’s transaxle or differential on one of the wheels.  There are joints in both the inner and outer sides of the CV axle.  These joints allow the axle shaft to move and change different road conditions without affecting the wheels’ transmission power.

In the absence of CV joints, axles can crack or bend whenever they are running on a bump or turning the corner.  So you must check and maintain CV joints because it keeps the CV axle protected from powerful forces.

CV joints need to be lubricated regularly to function correctly, so there is a rubber boot to each joint.  This rubber boot is filled with grease that helps the moving parts work correctly.  The boot not only maintains lubrication on the joints but also protects the joints from dirt and debris.

If water or other road waste enters the CV joint, it will not be long before it is damaged.  And when this happens, it will not be long before you start to notice signs such as strange sounds and vibrations, as described earlier.

cv axle

Collectively, CV axels, joints, and boots serve as a system that ensures smooth and efficient mobility. You can buy them online at The Auto Parts Shop.


Factors that affect your car shock absorber – The Auto Parts Shop

Your car’s suspension system consists of various components that work together to keep the vehicle bouncing around when driving over bumpy roads. They are situated on the front and rear wheels, but modern car models usually only have rear shock absorbers, with struts on the front.

Most of the hit occurs when you are on uneven terrain, and it makes your car shock absorbers to take a lot of pressure, deteriorating them faster.

So the question is, how long are they meant to last, and when should you replace them?

How Many Miles Do Shocks Last?

Unfortunately, there’s no definitive answer as long as your shocks will last. Service life depends on several factors, including what type of vehicle you have; Where you drive, and your driving habits. The initial quality of the shocks also plays a role.

car shock absorber

In general, most experts estimate the service life of shocks to be between 50,000 and 100,000 miles. But keep in mind that reaching the 50,000 or 100,000-mile mark does not necessarily mean that your shocks need to be changed. If you take good care of your vehicle over the years, you may find that your shocks will not be replaced. Nevertheless, even if your suspension system is not exhibiting issues, it’s good to have it inspected once you reach the 50,000-mile mark.

Factors that affect the longevity of your shocks

As mentioned earlier, several factors can affect the life of your car shock absorbers. If you want to ensure their longevity, here are some things you want to avoid:

  • Bumpy Roads
car shock absorber

Bumps on the road double the miles for your shocks.

Driving on rough roads, over potholes, and uneven terrain can cause a lot of strain on your suspension system. You can not always choose where you go – poor road conditions can not be escaped. So if you have no alternative but to drive on bumpy roads, try to minimize the damage by moving slowly as you normally would.

Be too conscious with potholes – if you see one in your way, try to avoid it as much as you can.

  • Heavy load
car shock absorber

The suspension system of your vehicle has a maximum load capacity, which refers to the total weight it can carry when you are on the road. If you go over the limit, whether you have too many passengers on your way or carrying excessive cargo, you are overloading – a practice that can ruin your shocks.

Overloading can cause the springs in your suspension to distort or even break from the strain, so make sure you know your suspension system’s load capacity is to avoid overloading your vehicle.

  • Stop-and-go driving

This type of driving is often unavoidable in the bustle of city streets and highways, especially in the rush hour. Nobody wants to be in stop-and-go traffic, but your shocks can last much longer if you can avoid it.

This type of driving is also common for tailgaters, who often have to enter their brakes more often to avoid bumping the car in front of them. So one should stop doing that- not just for the longevity of shocks, but also for everyone’s safety.

  • Weather Conditions

Although all the other things mentioned in the list are avoidable, you can not avoid the weather. Particularly, if you are residing in a wet climate that sees a lot of snow and, as a consequence, road salt, your shocks may wear faster because of corrosion.

All you can do is to resist and get ahead of the rust. Clean your suspension system every once in a while.

  • Vehicle Modifications
car shock absorber

If you modify your car’s suspension, you can put your shocks by lifting or lowering it under strain. The reason being, you’re either compressing or extending the shock beyond the manufacturer’s design.

When should you replace your shocks?

If you’ve started noticing issues with your vehicle’s suspension system even before you reach the 50,000-mile mark, it may be time to replace your shocks.

car shock absorber

Here are some symptoms that you may experience if you have faulty shock absorbers:

  •   Rough or bumpy ride
  •   Your vehicle “bottom out” when you go over bumps
  •   Clanking or banging noises of the undercarriage
  •   Poor handling and braking performance
  •   Your tire tread exhibits a “cupped” wear pattern.

If you come across some of these signs, this may be your cue to replace your car shock absorbers. However, always remember that a car has many moving parts – this means that the presence of these issues may not necessarily mean that your shocks are inadequate. It may point to something else entirely.

To be safe, visit your mechanic and have your vehicle inspected. Also if you are looking for various parts for your car, you can visit The Auto Parts Shop.