1999 Cadillac Deville blower motor

1999 CADILLAC DEVILLE
109,000 MILES • 6 CYL • 2WD • AUTOMATIC
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YOOGIE
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  • 2 POSTS
The blower motor,heater /ac works when it wants to. If I set it on auto low, it works longer than auto high. HELP!!
Aug 10, 2009 at 8:58 PM
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FACTORYJACK
  • CAR REPAIR CONTRIBUTOR
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Does it just stop blowing, or does the panel go blank?
Aug 10, 2009 at 10:19 PM
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YOOGIE
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the panel is fine, the motor just stops, and sometime will kick back on. does it in heat or ac mode
Aug 10, 2009 at 10:26 PM
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FACTORYJACK
  • CAR REPAIR CONTRIBUTOR
  • 4,159 POSTS
I would say your blower is probably failing. It is simple to check if you have a voltmeter or test light. When it stops working, you can check at the blower connector for 12 volts across the two large wires, or a test light that lights. If either of the tests show results, you have power to the blower. It is safe to say at that point, the blower is bad. Simply banging on it when it stops, may cause it to resume operation. Usually the brushes or commutator bars are worn/dirty, but it is serviced only by replacement.
Aug 11, 2009 at 12:51 AM
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