Why does turning on heat brings in exhaust fumes?
10-22-2003, 12:59 PM
#1
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Join Date: Aug 2002
Posts: 70
Why does turning on heat brings in exhaust fumes?
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.
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.
10-22-2003, 08:19 PM
#2
Originally Posted by Antagonist
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.
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.
Good luck.
AA
10-23-2003, 02:22 PM
#3
Member who somehow became The President of The SE-L Club
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Join Date: Jun 2001
Posts: 16,033
Originally Posted by doublea
Hor 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.
123456789
10-23-2003, 03:23 PM
#4
Originally Posted by Antagonist
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. .
10-25-2003, 03:54 AM
#6
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.
10-25-2003, 06:57 AM
#7
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Join Date: Aug 2002
Posts: 70
Originally Posted by CandiMan
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.
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