OVERHEATING

1998 Pontiac Grand Prix

Tiny

charlie1229

June, 28, 2012 AT 8:28 PM

What could be the problem to my car overheating, I did a pressure test and the pressure held up. I heard that others have had problems with the intake manifold but I do not know if mine has that problem. What should I try or check?

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10 Answers

Tiny

rasmataz

June, 28, 2012 AT 8:33 PM

Did you check/test the thermostat-if not do it and also check the water pump if its pumping coolant thruout the egnine if okay-get a chemical tester and check for combustion leak

Tiny

charlie1229

June, 28, 2012 AT 9:36 PM

The thermostat seems to be working, how do I check the water pump?

Tiny

Jacobandnickolas

June, 30, 2012 AT 12:24 AM

If the t-stat is working, flush the system and also, make sure there are no collapsed hoses.

Tiny

charlie1229

July, 4, 2012 AT 2:16 AM

What all hoses do I have to look for besides the ones going to, and coming from, the radiator?

Tiny

charlie1229

July, 4, 2012 AT 2:18 AM

Also I think I have a coolant leak and thats why it is overheating, but I have no idea where it could be coming from since the pressure test held up

Tiny

mikederouin88

July, 4, 2012 AT 3:28 AM

What motor do you have

Tiny

charlie1229

July, 4, 2012 AT 4:13 AM

I have the 3.8 but not the super charged

Tiny

mikederouin88

July, 4, 2012 AT 3:28 PM

There are two plastic elbows by the tension pulley that commonly leak on that motor you can buy them off the help isle at any parts store.

Tiny

charlie1229

July, 4, 2012 AT 4:30 PM

Are they by each other because I've changed one of them before but I do not know where the other one is

Tiny

mikederouin88

July, 4, 2012 AT 8:39 PM

They are right by each other. When u buy them they should come together. And when they leak it burns off the monifold before it hits the ground.

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