HEATER

2004 Pontiac Vibe

Tiny

wienerdg

November, 26, 2010 AT 1:40 PM

2004 pont. Vibe. Engine heats up fine, blows hot through the heater, about 15 mins. Blows cool air through the heater. Turn off 10 mins blows hot again. Then cool?

FOUND 4701 RELATED QUESTIONS

Heater

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1 Answer

Tiny

Wrenchtech

November, 26, 2010 AT 1:48 PM

With the engine at full operating temp and the problem being present, locate the 2 heater hoses where they go into the firewall and feel them to see if they are both hot to the touch. If they are.

The heat in that vehicle is controlled by a blend door that regulates heated air flow. It is operated by an electric motor/actuator. The problem can be that the actuator is stripped or inoperative or the door itself could be damaged. This is what needs to be determined by examining the actuator and see if it is responding to heat change commands or not.

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