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Surging blower motor


jmarhal
12-06-2003, 02:16 PM
1991 Buick LeSabre with the automatic temperature control. The blower motor surges when it's at a low and medium speed. It does not surge when it's on high. Very annoying! I tried a different blower motor and it does the same thing. Anyone have a hint as to what it could be?

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