2003 Pontiac Aztek Continual High temp reading

Tiny
TOMOHAWK61
  • MEMBER
  • 2003 PONTIAC AZTEK
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 141,000 MILES
Within 5 minutes of driving the vehicle the warning light comes on with high coolant temp, then would drop down a little, then go back up. Pull over both fans are running upper hose is hot, but top of the engine is cold. Replaced coolant and thermostat, bled the lines. Sometimes there is heat and other times just blows cold air. Can sometimes get the temp to drop by putting the vehicle in neutral and revving the engine.

Any ideas what the problem may be

Thanks
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Tuesday, December 29th, 2009 AT 9:22 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • EXPERT
First, make sure the coolant is full. If it is, I would then turn to the thermostat.

Let me know what you find.

Joe
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Monday, January 11th, 2010 AT 6:44 AM

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