2002 Ford Explorer heater control

Tiny
FRANK CORNISH
  • MEMBER
  • 2002 FORD EXPLORER
  • V8
  • 4WD
  • AUTOMATIC
  • 95,000 MILES
Heat comes out on dash one day floor next day defroster next day or where it wants to control does not matter what setting it is on
Sunday, March 14th, 2010 AT 5:05 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,052 POSTS
I think you are looking for a vacuum leak. The vent doors are actuated by vacuum. If there isn't enough or none, then they won't work properly. Check under the dash for leaks. Also, with the engine running, you may get lucky and hear a hissing sound from where there is a problem.

Check that out and let me know what you find.
Joe
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Monday, March 15th, 2010 AT 10:44 AM

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