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Pontiac Grand Prix

Why would a 1994 grand prix still overheat if thermostat water pump radiator and fans have all been changed out?


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2006-09-04 02:23:09
2006-09-04 02:23:09

Check to see if the fan is actually coming on. (possible bad sensor) Also, check to be sure the thermostat isn't put in backwards. The Coolent system also needs to be bled, kinda like brakes. There are two bleeders. they are both on the top of the engine were the hoses connect. Mine were both broke off. They are dealer items only, cost $9 each. Open the one on the left as you fill the radiator. when anti freeze comes out with no air, close the valve. Start the car and open the one on your right(drivers side) let out air then close. I had to play around a bit with it but it is now running at the right temperature. Anti freeze sprays all over the engine but that can't be helped. Good-Luck

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