Recently, the weather has gotten cold enough that I have to turn the heat on in the mornings when I go to work. I turn it to the first fan speed, with the slide just barely between the cold and hot lines. However, when that happens, it smells like exhaust fumes. Sometimes it gets so bad that I have to open the windows in order to get some fresh air.
But if I start the car later in the day, it does not smell like car fumes. Could it possibly be that I am sitting in traffic during the mornings and that it is the cause of the fumes? Or could it possibly be an exhaust leak? I have a y-pipe and RT cat installed.

 

Hey Antagonist, in my humble opinion, I think it's either an exhaust leak, or it is because when your sitting in traffic and stick the a$$ of the car in front of you then your max is breading the exhaust of that car. When you drive if it smell than you probably have and exhaust leak, check that one.

Good luck.

AA

 

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Turn the recirc on. That way no outside air gets in the car.

 

Check your fuel line. My '89 had this problem, and it was always worse in the morning. My line had a small leak.

 

Where do you have the air coming out, vents, defroster, feet? I do believe if you have the air coming out the defroster your HVAC system will default to recirc which will allow fresh air to come in. Or in your case exhaust fumes. Was auto climate control offer for your year vehicle.

 

Most of the time, I have the defrost/feet button pressed and I do not have the auto climate control. I will try turning the recirc on during the mornings and see if that helps. Thanks for the advice.

 

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