2006 Pontiac Grand Prix 6 Cylinder Gran Prix Coolant Full Start Out Heater Temp

2006 PONTIAC GRAND PRIX
98,000 MILES
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MICHAEL BRIAN DOLAN
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  • 2 POSTS
I have a 2006 6 cylinder Gran Prix. With the coolant full I start out and the heater and temp gauge work fine. After about 1 hour of drive time the heater starts blowing cool air and the temp gauge goes up. I park and check the engine compartment and there is coolant leakage around the belts and back engine area. After the car sits for some time at work i fill the coolant and the process repeats itself. Could this be a thermostat problem and would it purge coolant if this is the case?
Nov 13, 2012 at 7:28 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
we need a motor size. i will give you a general idea. the water pump sounds like the issue. get it fixed before you damage the motor from the leak

Roy
Nov 13, 2012 at 7:32 PM
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MICHAEL BRIAN DOLAN
  • MEMBER
  • 2 POSTS
3.8 liter
Nov 13, 2012 at 7:41 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
check the little elbow that are 90 degrees as they leak often

Roy
Nov 13, 2012 at 7:43 PM
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