1998 Gmc C1500 Troubleshoot Problems Heat Doors Blend Door Etc

1998 GMC C1500
18,000 MILES
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how to troubleshoot problems with heat doors, like blend door etc.
Feb 13, 2013 at 12:30 AM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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.
Feb 13, 2013 at 12:32 AM
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