2003 Ford Expedition HVAC air flow shifting between defrost

Tiny
V8RUMBLE
  • MEMBER
  • 2003 FORD EXPEDITION
  • V8
  • 4WD
  • AUTOMATIC
  • 100,363 MILES
Upon acceleration, blower door appears to shift from dash outlets to defrost postion, than returns when engine vacuum load is reduced. Could this be a vacuum hose loose or off, or more likely some type of valve or vacuum component? Thanks in advance for your help.
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Wednesday, June 11th, 2008 AT 1:38 PM

1 Reply

Tiny
JOYLER6883
  • MEMBER
  • 1 POST
V8rumble, did you figure out what was causing your problem? I am having the same issue on my 2002 Ford Expedition. Any help you can provide me on how to repair my truck would be great. Thanks
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Monday, September 8th, 2008 AT 11:14 PM

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