Hi all, I need some input. My car has a slight exhaust fumes smell coming through the vents when I turn the heat on. This just started yesterday after I switched the temperature control from cold to hot. The smell only appears to happen when burning heat. What could this be? Would the EGR valve o…

[image] jerristanback_158472: I backed into a curb last month and since my car has been louder upon acceleration You broke your exhaust and the fumes are getting into the car. This needs to be repaired immediately because these fumes can sicken or kill you. Drive with the windows open on your…

Also,check around the valve cover gasket in case some oil is leaking and dripping down on the exhaust manifold.I always get a burning oil smell through the vents when this happens.What is the make,model,year of your vehicule,milage?.

Thanks for the quick reply. I edited my original post to include more info. I drove the car maybe 30 minutes total before I started to smell the slight scent of exhaust fumes. This has never happened before when switching from cold to hot. I don’t switch the vent dial to heat, I leave it on max and …

Its a 1997 Buick Century. I’ve had the heat on for short periods a few times since backing into the curb. Yesterday was the first time I ran the heat longer.

I figured I need something fixed but yesterday was the first time smelling the fumes although I have ran both heat and air since first backing into the curb.

Any idea on what they will possibly need to fix when I take it into the muffler shop? I just like to have an idea of what might be going on so that I don’t get charged for things that I don’t need.

[image] jerristanback_158472: Any idea on what they will possibly need to fix when I take it into the muffler shop? Not without seeing the vehicle in person can anyone say what needs fixed or replaced . The muffler shop will tell you and then you either agree to the repairs or get a second op…

Thanks to you all for the input. I went to a muffler shop. They showed me where the muffler was bent up. They also said I needed some sort of plate that’s a part of the exhaust system but up near the front of the car.

Exhaust fumes smell when heater is on

Maintenance/Repairs

SteveCBT October 12, 2019, 1:01pm 2

If this is the first time you turned the heat on for several months it may be dust baking off the heater core, if should clear up soon. Same thing happens at home when your furnace comes on the first time. If this continues get your car to a mechanic ASAP to check for an exhaust leak which can be dangerous.

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Exhaust fumes smell when heater is on

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