Question about 1996 Pontiac Grand Am

1 Answer

Can't figure why running hot

We have had everything we can think of repaired (including waterpump,

lower intake gasket, upper and lower radiator hoses, even had transmission cooler installed. One day it is fine. and the next day it starts running hot again.

Help (I am a female and not a mechanic, am reading off of the work repair sheets). My husband has about given up on this, my granddaughter's car.

Posted by on

  • ROB May 11, 2010

    is it loosing or using water ?? is their any steam or vapour coming from the tail pipe?? if so then the head gasket may be leaking or the head has warped! the thermostat could also be sticking! there is a chemical test to check if combustion gases are mixing with the water in the radiator when it cahnges colour its becuase the gas has reacted to the chemical! giving a positive result or a compression check on each cylinder to see if its low in any of them which can also determine head gasket laekage! so on that note! Good luck Cheers Rob

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  • Pontiac Master
  • 1,619 Answers

Sounds like a bad thermostat, Transmission cooler never should have been installed as that has nothing to do with heating and cooling of the motor.

Next check to see if the electric fans are turning on. If it get hot at low speeds its probably due to the fan not coming on and using the A/C heavily.

Posted on Jul 20, 2009

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"if this has helped you in any way, please rate this solution"

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