Q: Exhaust smell in cabin while idling

asked by on January 03, 2017

The piston rings were replaced, airbags replaced and air conditioner repaired on this car in August, since then there has been a strong exhaust smell in the cabin when idling. Car has been to the dealer 4 times for repair. It is now winter and I have to open the windows. Car passed emissions test, smell seems to be coming from the engine. Dealer replaced cabin air filter, smell still persists. They claim they can't replicate it so they can't fix it. Noticed the smell on the way home from the last trip to the dealer. Any ideas?

My car has 87237 miles.
My car has an automatic transmission.

Since you just had major engine repairs done and the exhaust system was disconnected and the manifolds were removed then you may have an exhaust leaking into the interior. You should have the a/c on recirculate air and not outside air to see if it helps not pulling n the exhaust fumes. Have the exhaust checked to see is it is leaking and fix the leak. If the dealer says it does not have a leak then have an independent mechanic or shop like one from YourMechanic to recheck the system for you.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Car does not start.
If the engine dies while driving and it is associated with an electrical service light, the issue is almost certainly the alternator. I would recommend having your starting system inspected (https://www.yourmechanic.com/services/car-starts-and-then-dies-inspection) for faults by a technician from YourMechanic. If the...
How do I play a USB device?
A USB device can be played through the sound system. To do so, locate the USB outlet connector, which is in the center console compartment, and plug the USB device directly into the outlet. Then, press the Auxiliary button.
Can't get the serpentine belt back on
There should be a belt routing diagram either on the trim panel over the radiator or the underside of the hood. If not, most auto parts stores should have repair manuals available for your vehicle. If you would like a...
how to wire in vss no wire for it tran do not shift like it shold
Hi there. Unfortunately, we don't have enough information from you to assist resolving your shifting problem. Please provide us with the make, model and year of vehicle; along with any symptoms you're having. Otherwise, please consider having one of our...
Where is the crankshaft position sensor location?
The crankshaft position sensor is located on the driver side of the engine and in the back by the transmission on the engine. If you need further assistance with your crankshaft position sensor (https://www.yourmechanic.com/services/crankshaft-position-sensor-replacement), then seek out a professional, such...
I am about to replace engine in my 1998 lincoln nav it had 240 thousand miles i have an engine trying to find a good e to have it
To remove and replace the complete engine, the labor time is in the range of 14 to 18 hours . The variance is due to different requirements in the 4WD version versus the RWD version and there are at least...
2013 Ford Fusion Car won't start and has a clicking noise when I turn the key... what's wrong
It sounds like you may have a weak battery, a failing voltage regulator or failing alternator. The rapid clicking sound is the starter trying to engage the flywheel to turn the motor over. When the battery is too weak to...
code P0420 on my 2012 Chevy Equinox 2.4L O2 sensors
The code P0420 for your 2.4 L engine is for the after the catalyst O2 sensor. Your vehicle has only two O2 sensors. One is in manifold before the catalyst and the other is after the catalyst. The code can...
Battery saver active light has just come on in my 2011 Equinox and i am on the highway about 100 miles from home. should i be able
Hi There, This can be caused by a loose battery cable (https://www.yourmechanic.com/services/battery-cable-replacement) which is often times the problem. Try checking to be sure they are connected properly. Also, there is a sensor that has 3 small wires running to it...

Related articles

The Best Used Cars to Buy If You Live in a City
Living Living and driving in the city means you’re faced with parking constraints, narrow streets, and the constant stop and go of traffic. With all of that said when you’re ready to purchase a used vehicle these are all things...
The Best Used Cars to Buy If You're Over 50
Shopping Shopping for a car when you’re over the age of 50 begins to shift a bit, as your priorities tend to change. Suddenly it’s not so much about what the vehicle looks like, or how much space it has...
How to Replace a Broken Car Exhaust Hanger
Car exhaust systems include exhaust hangers that are fastened to the exhaust pipe to keep it quiet. Jack up your car to replace the exhaust hangers.