How to troubleshoot problems with heat doors.

Tiny
ANONYMOUS
  • 1998 GMC C1500
  • 18,000 MILES

How to troubleshoot problems with heat doors, like blend door etc.

Wednesday, February 13th, 2013 AT 12:30 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,362 POSTS

The blend air door is near the heater core. Basically, you need to see if the door reacts when you change from heat to cool air.

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Wednesday, February 13th, 2013 AT 12:32 AM

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