Common Signs Of Car Exhaust Leakage

What Are The Common Signs Of Car Exhaust Leakage?

May, 12 2023

When the car engine gets turned on, all the gases are directed towards the exhaust system, ready to be released out of the engine. These unwanted gases are then emitted from the back of the car, far away from the passengers or the driver into the open air. However, damage or wear out of vehicle spare parts can result in a significant effect on exhaust leakage, and that impacts the overall output of the car. Exhaust leakage is basically wear and tear in the exhaust system which causes toxic emissions to be retained inside the car instead of being thrown out and released. Opting for reliable and professional car service Perth avoids malfunctioning of the exhaust system, which can lead to poisonous gases being emitted into the air and can be a major contributing factor to environmental pollution.

Major Signs of Car Exhaust Leakage

Toxic gases like phosphorus, carbon monoxide, unburned fuel, and lead can cause major damage if retained inside and not properly emitted. These emissions slowly gather up inside the car and can cause severe dangers if not taken notice of. Discussed below are some top symptoms and signs of car exhaust leakage that can prove to be highly hazardous.

Strange Noises While Driving

Normally, after starting up the car engine, the accelerator makes a loud sound when it is pressed to make the car go forward. This is due to the engine spinning its components to generate the required power. But strange noises that sound odd or too loud can be a warning sign that the exhaust system is not working right. The strange noise that is heard is a sign that poisonous fumes are not being emitted openly out of the vehicle, and are being retained inside the engine. Thus, it is crucial to be able to distinguish between normal vehicle sounds and odd noises that are harmful. Hiring exhaust System repair services at perthautorepair is a worthy option to handle such tasks, making sure your engine functions perfectly at its best.

Gas Pedal Vibrating

Another key warning symptom of exhaust malfunction is vibrations in the gas pedal. When your feet apply pressure on the gas pedal to move the car, you may feel strange vibrations. These odd vibrations are an indication that your gases are not being emitted. The intensity of the vibrations is directly proportional to the amount of gas leak inside the engine. In case of severe leakage, the steering wheel and floorboards will also vibrate heavily. If you leave these warning signs unattended, they can ultimately become so loud that they are audible inside the whole car cabin. Thus, as soon as you notice intense vibration, it's time to get your car exhaust checked by a professional car expert mechanic.

Bad Smells

Bad fumes emitted from the car engine tend to smell poisonous and unpleasant. One of the gas emissions is carbon monoxide. Thus, if there's an exhaust leak you will smell strong unpleasant odors inside the car and also outside. Not only are these gases dangerous and potentially deadly for the lungs to breathe, they are also a huge danger to the lives of the passengers inside the car because they are flammable. As soon as you notice such smells, it is recommended to immediately exit the car. Afterward, get it inspected by the nearest auto repair shop to figure out if the exhaust of the engine is damaged. If you notice such smells during a long drive, it is smart to roll down all the windows to make sure the gas does not accumulate inside the car and cause suffocation.

More Consumption of Fuel

Leakage in the exhaust system of your car causes poor fuel consumption. The oxygen sensors in your vehicle determine the fuel to air ratio in your car. The emission of poisonous gases causes this sensor to not work properly and gives the wrong reading. Thus, the PCM of your vehicle is unable to determine the amount of oxygen that is entering and exiting the vehicle. This causes more fuel to burn than normal. Overconsumption of car fuel means it is more costly to drive your car and also decreases engine efficiency. Therefore, as soon as you notice that your PCM readings are not fully adequate, it can potentially be due to an exhaust malfunction in your car.


Other warning signs that your car exhaust is damaged could be odd clicking sounds, low engine output, or carbon particles accumulation in the engine. The odd clicking noises may subside when the engine gets heated enough but that does not mean the problem has disappeared. If you are exerting power on the engine but it does not seem to be functioning or responding that well to your commands, it's time to avail some professional exhaust system repair services from a reliable car mechanic.