02 Aztek heat comes and goes

Tiny
ROUNDMAN72
  • MEMBER
  • 2002 PONTIAC AZTEK
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 100,000 MILES
When the car is first started heat is fine (once warms up), then as it sits there on idle the temp gauge goes above half and then the cold air starts. Now if you drive it the temp goes down and heat comes back. I have checked fluid level. Checked for air in system (bleed valves). I can not have a plugged heater core due to it working if you are not sitting idle. Any ideas? Thanks ahead of time.
Do you
have the same problem?
Yes
No
Monday, December 6th, 2010 AT 4:23 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • EXPERT
Have you checked for a leaking head gasket?
Was this
answer
helpful?
Yes
No
Monday, December 6th, 2010 AT 5:29 PM

Please login or register to post a reply.

Recommended Guides