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I have a 2006 6 cylinder Gran Prix

Tiny
MICHAEL BRIAN DOLAN
  • MEMBER
  • 2006 PONTIAC GRAND PRIX
  • 98,000 MILES
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?
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Wednesday, November 14th, 2012 AT 3:28 AM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 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
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Wednesday, November 14th, 2012 AT 3:32 AM
Tiny
MICHAEL BRIAN DOLAN
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  • 2 POSTS
3.8 liter
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Wednesday, November 14th, 2012 AT 3:41 AM
Tiny
ASEMASTER6371
  • MECHANIC
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Check the little elbow that are 90 degrees as they leak often

Roy
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Wednesday, November 14th, 2012 AT 3:43 AM

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