OVERHEATING

  • Tiny
  • charlie1229
  • 1998 Pontiac Grand Prix
  • 170,000 miles

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?

Thursday, June 28th, 2012 AT 8:28 PM

10 Answers

  • Tiny
  • rasmataz
  • Member

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

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Thursday, June 28th, 2012 AT 8:33 PM
  • Tiny
  • charlie1229
  • Member

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

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Thursday, June 28th, 2012 AT 9:36 PM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,305 posts

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

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Saturday, June 30th, 2012 AT 12:24 AM
  • Tiny
  • charlie1229
  • Member

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

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Wednesday, July 4th, 2012 AT 2:16 AM
  • Tiny
  • charlie1229
  • Member

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

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Wednesday, July 4th, 2012 AT 2:18 AM
  • Tiny
  • mikederouin88
  • Member

What motor do you have

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Wednesday, July 4th, 2012 AT 3:28 AM
  • Tiny
  • charlie1229
  • Member

I have the 3.8 but not the super charged

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Wednesday, July 4th, 2012 AT 4:13 AM
  • Tiny
  • mikederouin88
  • Member

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.

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Wednesday, July 4th, 2012 AT 3:28 PM
  • Tiny
  • charlie1229
  • Member

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

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Wednesday, July 4th, 2012 AT 4:30 PM
  • Tiny
  • mikederouin88
  • Member

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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Wednesday, July 4th, 2012 AT 8:39 PM

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