2002 Pontiac Aztek heater blowing cold

2002 PONTIAC AZTEK
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BUGGMULLENS2
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Heater problem
2002 Pontiac Aztek 6 cyl All Wheel Drive Automatic 130k miles

when i am not pressing on the gas pedel the heater starts to blow cold. is there anything i can do to fix that.
Jan 8, 2009 at 8:39 PM
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IMPALASS
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Hello

Have you checked your coolant fluid level?

Also check the two heater hoses going into the firewall if your coolant level is okay and let me know if they are both hot or one is and one not.

Does the temp gauge also go down?

Jan 8, 2009 at 9:09 PM
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BUGGMULLENS2
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the gauge stayes the same but i will check the level and the hoses thanks.
Jan 9, 2009 at 4:05 PM
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IMPALASS
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Hello

Make sure if you need to service it with coolant you do it at operating temperature (be careful removing the cap) and turn the heater on high to service.

Let me know what you find out
Jan 9, 2009 at 7:15 PM