Is It Time For A New Exhaust?

The exhaust system on a car is made up of several components. Included in these is the catalytic converter. The catalytic converter is responsible for ‘cleaning’ the exhaust fumes from the car. If there is a problem with your catalytic converter then your car is unlikely to pass its MOT, it will also be contributing to air pollution.

Another important feature of the exhaust system is the silencer. This reduces the noise of the exhaust fumes leaving the car. It also directs the fumes out of the car and away from the passengers.

If your exhaust system is not working correctly it can lead to fumes entering the car. It can cause your car to fail its MOT. It can also make the ride louder. Knowing if it’s time to replace your exhaust can save you money and your health,

Why Does An Exhaust Need to Be Replaced?

The fumes that pass through the exhaust system are hot and acidic. This, combined with the position of the exhaust system, on the underside of the car, means that the whole system is prone to rust and corrosion.

The issue of rusting can be exacerbated when the car is frequently used to make short trips. On short trips, not all the fumes leave the system, and the water vapour in the exhaust condenses. The build-up of water in the system creates conditions that promote rusting.

How Long Should An Exhaust Last?

How long an exhaust will last depends on a number of factors. The major consideration is the age of the car. Modern cars have exhaust systems made of either chrome or stainless steel. These exhausts should last for the whole life of the vehicle. This is especially true if you have it checked regularly as part of your car’s maintenance routine.

Some older cars have exhausts made of steel. In these cars it is not uncommon for the exhaust to need replacing every five years.

How To Tell if you Need a New Exhaust

Increased engine noise – If your engine has begun to make more noise when you’re driving, it can be a sign of a problem with the silencer on the exhaust.

Rattling Signs – If parts of the exhaust have become loose then they tend to rattle.This could also indicate damage within the catalytic converter.

Rust – If there are any visible signs of rust on the outside of your exhaust then there is likely to be rust within as well.

High Fuel Consumption – If you notice that you are not getting the same mileage you used to, this can be a sign that your car is working inefficiently. This can be caused by a damaged exhaust system.

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