I have a 2007 grand prix gt and my thermostat keeps reading very high then my computer screen sayes a/c off for engine protection and sometimes thermostat gets really high car sayes hot coolant ??

Asked by Mar 19, 2015 at 02:37 PM about the 2007 Pontiac Grand Prix GT

Question type: Maintenance & Repair

Please help!!!

6 Answers

Forgot to mention car is never hot when I check engine it's warm I can't drive 10 mins or more before this happenes

7,475

Possibly a stuck thermostat, it's inexpensive, just replace it.

3,945

Agree. Or, if you've changed coolant recently then possibly air trapped in the system.

1 of 1 people found this helpful.
Best Answer

When it does it i pull over and hear a bubbling sound so it's probably is air in there I did have it replaced recently

3,945

You need to bleed that air out of the system to get it cooling properly. It's a bit tricky to do on newer cars. Shops that specialize in cooling system service have special vacuum equipment for doing the job properly. Sometimes a few dollars spent getting it done professionally pay off in the end.

7,475

Not sure about the 2007 but the earlier V6 motors had an air bleed screw for the cooling system on the front left side of the motor

1 of 1 people found this helpful.

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