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2003 Cadillac DeVille DTS Question: air conditioning fan works only intermittenly

 

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Visitor, Las Cruces, NM, May 08, 2010, 08:29

Why does air conditioning fan work intermittenly? IT comes on when right door slams or when going across a rough railroad track

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  • Answer #1

    Visitor, November 05, 2010, 06:34

    The blower motor brushes are worn and the slamming door causes them to make contact, at least temporarily. Just been through this exact scenario.

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