Last post on Jul 24, 2012 at 7:23 AM
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Pontiac Grand Prix, Auto Repair, Sedan
#34 of 41 1997 Grand Prix Engine Overheating Problems
Jul 24, 2012 (7:23 am)
#35 of 41 1997 Grand Prix Engine Overheating Problems
Apr 20, 2009 (2:56 pm)
1997 Pontiac Grand Prix 3.8 engine
My Cars cooling fan for the engine will not turn on, it should turn on when it reaches 200*f but it is turning on when the meter hits 250*f and it is to late.
I have already replaced the fan and the censer, but the fan still wont turn on until the meter reads 250. What could the problem be?
Anyone else face these problems?!
#36 of 41 Re: 1997 Grand Prix Engine Overheating Problems [szaflsta]
Apr 21, 2009 (6:44 pm)
i have a 1996 grand prix with a 3.1 motor. i also had over heating problems but that was due to a faulty lower intake gasket that goes every 2 years, i am not sure if this will help you. i went in and the mechanic said it costs $1000 to fix it, i did it myself and i got new heads for $400. I am also looking for a 1996 3800 motor, NOT SUPERCHARGED. the supercharged ones catch on fire. if you know anyone that would be willing to sell one please let me know.
#37 of 41 Cooling fans
Mar 19, 2010 (7:05 pm)
I have a 1998 Grand Prix with a 3800 engine and the colling fans will not run, regardless if the air is on or not. ( The system curently doesn't have freon in it major leak )
#38 of 41 Re: Cooling fans [duart]
Mar 25, 2010 (7:04 pm)
try checking all the wiring, you would be surprised how many problems arise due to poor connections. also make sure the wiring did not get caught in the fans and ripped off. if not, try getting an external power source and connect to the fans directly to make sure the fan motors themselves are not burned out, and also check all the fuses.
#39 of 41 overheating
Aug 07, 2011 (3:22 pm)
My car keeps over heating I have replace thethermostate and radiator the radiator cap water pump and I'm still overheating.when I pull over and unscrew my pressure values nothing but air comes out also my antifreeze. goes back into my overflow
#40 of 41 Re: overheating [tinag1]
Jul 23, 2012 (1:49 pm)
I have a 97 3800. it is doing the same thing. i talked to a guy seemed to know what he was talking about, the intake gasket needs to be replaced. he said you have a leak into the system creating a air pocket. i havent went into it yet to figure it out, if you have message me back please.
Jul 24, 2012 (7:23 am)
i have a 1997 3800 it only over heats when you have to sit still, like at a red light,,i have had it in the shop twice, and no one seems to be able to tell me what is going on, and the hotter it gets outside the worse it gets, if anyone could help,,, the fans come on and seem to be working right.