1985 Chevrolet Truck Heater Controls Stuck On Floor Matter You Does Switch

1985 CHEVROLET TRUCK
129,000 MILES
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ANONYMOUS
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The heater controls are stuck on floor. No matter what you do it does switch to defrost/vent or nothing. I pulled dash apart and everything appears to be working but obviously something isnt. Any ideas?
Dec 28, 2012 at 7:48 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
it is vacuum controlled. make sure there is source vacuum to the control head.

Roy
Dec 28, 2012 at 7:50 PM
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