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Andrew_W
New User
May 29, 2007, 4:26 PM
Post #1 of 1
(1542 views)
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Hi, my name is Andrew and I have a 92 Pontiac Grand Prix SE 3.1L FI FWD V6. The car has just over 119,000 miles on it.
One of the main problems I have with the car that I haven't been able to fix is an idle problem. Namely when the car is at normal operating temperature (~180 degrees F). Whenever I'm at a light, the light turns green and about 80% of the time, I let off the brake and try to go to the gas, then the car dies. So I have to throw it in neutral and restart it. It also sputters sometimes while I am on the gas, and I can stay on the gas at the same position and it will eventually kick back up and accelerate like normal. I've scanned the car numerous times and the only code it showed was an "idle air problem", which I researched and found the problem was supposedly remedied by cleaning the throttle body and replacing the idle air control valve. Well, when I cleared the code, it didn't come back until a friend of mine was replacing a cooling hose for me, and he scanned it and found the same code, so apparently my fix didn't help it. I'm not sure what else an idle air problem could be but I have replaced numerous things before this including fuel filter, throttle position sensor, idle air control valve, and cleaned the throttle body.
My friend that replaced the cooling hose for me said that he noticed one of the two cooling fans were not kicking on and then the check engine light was coming on. He suggested I take a look at the cooling temperature switch which I researched and I believe it is located on the block right under the water outlet. I haven't taken it out to look at it, but since it's electrical, I figured either it's bad or it's not and the only way to know is to replace it, but I wanted a few more opinions before I did so. I was also wondering if the cooling fan relay would have anything to do with that problem?
Also, I went to check my spark plugs the other day and I could distinctly smell unburned gasoline on the three I took out of the front of the engine. I'm not sure if this has anything to do with the idle problem, but it seems like it could be.
Any information would be greatly appreciated as I need this car to last at least another 6 months before I can afford any type of loan or another vehicle.
Thanks again,
Andrew White
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