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2002 Ford Windstar No heat. With noise

Tiny
JCFAMILY6
  • MEMBER
  • 2002 FORD WINDSTAR
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 106,000 MILES
My van has stopped heating, while the a/c works. A "thump" developed as well when this happened. My kids call it the the vans heartbeat because literally it thumps like a heartbeat. When the heat or air is on it thumps and it sounds like it is in the dash. I can turn the heat/air settings to off and it will continue to thump some days worse than others. Sometimes I can adjust the front temp dial one way and the rear another (one to heat one to cold) and the thump will slow (again sometimes). Please tell me what I need to do before I have to go wothout heat this winter!
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Wednesday, September 29th, 2010 AT 7:59 PM

3 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Sounds like one of your blend doors inside the HVAC duct work has went out under the dash.

Its what controls posiiton of the door and where the air goes to get heated or cooled. Its quite an undertaking to take apart the dash to get to it to fix the problem.

I can give you the steps tho if you would like.
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Tuesday, December 20th, 2016 AT 6:10 PM
Tiny
ONEAGLE
  • MEMBER
  • 1 POST
Hey blackop555 I think I am having the same problem would you mind posting the instructions so I can fix the blend door in my windstar.
Thanks
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Tuesday, December 20th, 2016 AT 6:10 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Definately sounds like blend door failure. Probably needs new actuator motor.
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Tuesday, December 20th, 2016 AT 6:10 PM

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