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Answered 2012-01-05 04:28:29

Vacuum Lines. I had the same problem and it was due to cracked vacuum lines. Listen for some hissing under the hood and you might be able to find the source of the problem. Mine was right around the battery....................As this may be the problem your should first check under your passenger side right under the glove box you might have to take a interior trim plate and you can check the door a vaccum door and manually move it and you can get air out of your window defroster and possiblt getting it switched over and get it working if not you have two actuators there you can get replaced.

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