Skip the auto shop - Our mechanics make house calls

Q: Exhaust fumes in car

asked by on

Lately I have really been able to smell exhaust fumes inside my car, especially noticeable when stopped at a light, etc.

A: Hello. When you run the climate control, th...

Hello. When you run the climate control, the vehicle takes air from around the engine and outside of the vehicle and uses it to warm or cool and cab. If there is any form of exhaust leak in the system, the fumes will travel into the vehicle when the climate control is run. Sometimes these fumes can enter the cabin through the windows or through a bad seal. Either way these fumes are highly toxic and prolonged exposure can cause issues. You will want to find the source of the exhaust leak and have it repaired. Typically these types of repairs are done by professionals due to the extensive labor it may include. Finding the leak can be done several ways. Sometimes it is a failed connection, while other times it can be a crack or hole. Even catalytic converter failure would cause these smells to increase. A failed cat would likely cause a check engine light and an oxygen sensor failure code. You will want to find the leak and have it repaired as soon as possible. It will make the engine run better and likely help with gas mileage as well.

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: Transmission fluid leaked while pulling a car out of mud

From the description you're giving me, I'm not sure. I know many Fords, including my F150, have a circular seal type bell housing inspection cover near the transmission. Fluid pooled in this area generally indicates an engine oil leak from...

Q: Catalyctic chugging issues

Hello. If the issue started after the catalytic converter was removed, then it may be possible that the issue is related to the removal of the converter. For many vehicles, the catalytic converter plays an important role in engine...

Q: Car has white smoke coming out of the left exhaust when idling or just after pulling off from a stop. Fine after that

Are you losing coolant? If so, the white smoke (steam really) is coolant being lost out of the exhaust. If the car only does this when first started in the AM, it may simply be condensation being burned off, which...

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...
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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...