heater

2004 PONTIAC VIBE
230,000 MILES • 4 CYL • 2WD • AUTOMATIC
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WIENERDG
  • MEMBER
  • 1 POST
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???
Nov 26, 2010 at 1:40 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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WRENCHTECH
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 20,761 POSTS
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.

Nov 26, 2010 at 1:48 PM
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