why is my 2005 pontiac grand pix over heat n 15 below weather

Asked by Dec 03, 2015 at 10:11 PM about the 2005 Pontiac Grand Prix Base

Question type: Maintenance & Repair

I live in South Dakota and my 2005 grand prix is over heating even below
zero weather. The radiator is full of coolant water pump has been changed,
thermostate upper and lower intake gaskets have been changed.

4 Answers

71,965

Sounds like may be bad radiator,of coolant fans not working right.

1 of 1 people found this helpful.
75,345

Check the antifreeze concentration. If it's not strong enough for the conditions in North Dakota your antifreeze may be freezing up or even getting slushy. If that's the case you're overheating because of poor coolant circulation. HTH

75,345

I'm sorry, South Dakota. Oops! -Jim

4,645

Most likely of all is trapped air in the system. With all the work you've done on the cooling system air has likely become trapped in the system when you were refilling it. It must be bled out using the bleeder valve near the thermostat. It can be tricky to get it all out, but until you do your car will continue to overheat.

1 of 1 people found this helpful.

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