Common Symptoms of an Exhaust Leak

Common Symptoms of an Exhaust LeakThe exhaust system in your vehicle is one of the most heavily worked systems in your car, and it doesn't have any moving parts outside of the exhaust valves inside the motor. The exhaust is designed to do a few things. For one, it routes hazardous exhaust fumes past the passenger cabin to prevent carbon monoxide poisoning. Secondly, thanks to the assistance of the catalytic converter, it converts those dangerous exhaust fumes into less harmful emissions before spouting them into the air out of the tailpipe.

It is important that you take note of possible signs of an exhaust leak. Not only will your car fail emissions and smog testing if an exhaust leak is present, but you will be at risk of health issues and your vehicle will get less than ideal fuel efficiency. The following are three common signs of an exhaust leak.

Major Decrease in MPGs

If you notice a significant drop in your miles per gallon you will want to visit an auto shop for further diagnostics. Large drops, such as around a 25 percent decrease, are often attributed to an exhaust leak. This is because an exhaust leak will throw off the reading of the oxygen sensor in the exhaust system. The o2 sensor helps dictate how much fuel to send to the motor for combustion. If there are higher oxygen levels in the exhaust, as there would be if a leak was present, your car will begin to burn excessive amounts of fuel.

Accelerator Vibration

A more physical sign of a leak is if you notice a vibration coming from the gas pedal. This is essentially a reverberation of the exhaust fumes rushing out a small hole in the exhaust system. If the leak is really bad you may feel the steering wheel shake, or during rapid acceleration the whole vehicle may shimmy.

Increased Engine Noise

Perhaps the most common symptom of an exhaust leak is increased engine noise, particularly while accelerating up to highway speeds The noise may make your car sound better as you take off from a stop light, but this sound isn't actually doing anything for your performance. In fact, its a clear sign that your car is actually underperforming.

If you believe you may have an exhaust leak don't hesitate to visit a local auto repair shop for further diagnostics. If you need exhaust repair in Austin visit the team at Austin Auto Repair. We will quickly identify and fix whatever issue your vehicle may be suffering from. To learn more about our shop or to request an appointment for quality auto repair in Austin give us a call at (512) 865-6217 today.

Austin Auto Repair Blog

Published By MORBiZ