I HAVE AN 08 PONTIAC GRAND PRIX V6 AND THE HEATER ISNT HEATING PROPERLY. IT BLOWS COOL AND THEN WARM AND BACK TO COOL, I'M NOT SURE IF I NEED TO BURP IT OR CHANGE THE THERMOSTAT

Asked by Nov 18, 2015 at 08:32 PM about the 2008 Pontiac Grand Prix Base

Question type: Maintenance & Repair

1 Answer

3,875

Sounds like your cooling system is not full. May be air trapped in the system, or it may simply be low. Make sure it is full. Putting a new thermostat in as well can't hurt. They're inexpensive and they don't last forever.

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