Skip the auto shop - Our mechanics make house calls

Q: Loud noise

asked by on

While driving, I hear a loud noise. And now the vehicle has drivability issues.

A: Your concern sounds like an exhaust leak. A...

Your concern sounds like an exhaust leak. A leak in the exhaust system can easily cause drivability issues because the oxygen sensors constantly monitor the exhaust gases and adjust fuel trims accordingly. If a leak is present it will throw off the oxygen sensors readings and the vehicle will say that it is running lean due to excessive fresh air in the exhaust and will add fuel to richen the air fuel mixture when it is not actually needed, causing check engine light in some cases and drivability issues. An inspection of your exhaust should be carried out by a qualified technician in order to pinpoint the root of your concern.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: What tips should I know about using the CD player?

Using your CD player is actually pretty simple, but there are a few things that you’ll need to know regarding the system. Here’s a rundown of the most important Tips Error Messages: There are several error messages that might...

Q: My car is making a clunky noise and gets louder on acceleration. The check engine and power steering light is on

Hi there, thanks for writing in. It sounds like you may have a fan belt that is failing or loose or the power steering pump is failing. I would start by checking the tightness and the condition of the belt....

Q: I have no power steering

This vehicle may be covered under a recall for the electric assist power steering torque sensor failure. Call the local dealer and see if your vehicle is covered under recall number 14S05. They will replace the torque sensor and may...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...