I've been having a couple problems since the winter rolled around. Coolant is leaking and I can't find the leak anywhere. It's over heated twice. I can't even drive it a mile down before it starts to over heat. this is after putting more coolant in. I'm also noticing a strange whirring coming from my belt and I think that needs to be changed too. Any idea about repair costs for either problems and what to do in the meanwhile about overheating. I don't know much about cars, but I got this Grand Prix in June and I think the previous owner may have purposely over-looked some issues when selling it to me. I do love this car though
Coolant Leak on 1997 Pontiac Grand Prix GTP
by Crescentisalive in Bloomington, IN on January 18, 2011
ANSWER by Visitor on January 18, 2011
The whiring noise and coolant loss sounds like the water pump behind the timing cover is leaking and geeting coolant on the belt. You might not see it leaking while stopped because it might be coming out while under pressure while driving.
ANSWER by goodguysdiesel on January 18, 2011
We recently had a customer with a 2000 Impala and they had coolant "disappearing" and it was due to a leaky water pump...I would start there as well.
The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil...
I was driving home from work one night about 2am and my car shut off from overheating. I checked under the hood and found out that the radiator cap had come off and majority of the coolant had left...
The water pump may develop a coolant leak resulting in an engine overheating condition.
need step by step on how to do it