2002 Ford Explorer air conditioning/heater

2002 FORD EXPLORER
87,000 MILES • 6 CYL • 4WD • AUTOMATIC
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KIRSTYNS
  • MEMBER
  • 1 POST
My 02 explorer's heating and air conditioning isn't working right.If you have it on air it will blow out cold air but when you switch it to heat it makes a thumping sound in the dash and wont switch over unless you hit a hard bump in the road but then you cant get it to switch back to ac later.What could this be.
Sep 1, 2009 at 12:18 AM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Chances are the blender door is sticking. It is located near the heater core and determines if you get heat or AC. Have that checked.
Sep 1, 2009 at 8:00 PM
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