2002 Ford Explorer heater control

2002 FORD EXPLORER
95,000 MILES • V8 • 4WD • AUTOMATIC
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FRANK CORNISH
  • MEMBER
  • 1 POST
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
Mar 14, 2010 at 5:05 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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
Mar 15, 2010 at 10:44 AM
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