Exhaust odor in Pontiac Vibe when idling & heater fan is on
I have a 2003 Pontiac Vibe. Last year I began noticing an exhaust fume odor when the car is idling and the heater fan is on. The odor disappears as soon as I start driving, even if I don't open a window. I have had the exhaust system and the catalytic converter replaced, and it is still doing it. The latest thought is that it is a leaking head gasket. Could that be the cause? Not sure it's worth the $1500 for such an old car with 140K miles on it; nor do I want to spend more money on something that won't work. I love this car!
Oil leak dripping on the exhaust system is what I have had happen before.
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