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Gremlins on the blower
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CarGuru > General Motors > Gremlins on the blower 9 May 2005 04:11:49

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Gremlins on the blower

MikeG 9 May 2005 02:26:19
 1992 Buick Lesabre, 3.8L automatic. Can shut off car, pull the key, and the
in dash blower will cycle on and off. By morning, battery is dead. Have
since unplugged fan motor....??? stumped. I thought the fan can't possible
come on without the ignition on! AC etc works fine and fan speed is
adjustable.


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451ctds 9 May 2005 03:11:46 permanent link ]
 MikeG wrote:> 1992 Buick Lesabre, 3.8L automatic. Can shut off car, pull the key, and the > in dash blower will cycle on and off. By morning, battery is dead. Have > since unplugged fan motor....??? stumped. I thought the fan can't possible > come on without the ignition on! AC etc works fine and fan speed is > adjustable. >
I'm assuming your 92 is wired like my 84 A relay runs current
direct from battery to blower to bypass resistor = high speed position

Sounds like you need to replace relay, my car had opposite problem,
no current entering relay, a fused jumper cured problem.
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Paul 9 May 2005 04:11:49 permanent link ]
 MikeG wrote:>
1992 Buick Lesabre, 3.8L automatic. Can shut off car, pull the key, and the> in dash blower will cycle on and off. By morning, battery is dead. Have> since unplugged fan motor....??? stumped. I thought the fan can't possible> come on without the ignition on! AC etc works fine and fan speed is> adjustable.

A/C modules go bad. Especially in 92 Buicks.
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CarGuru > General Motors > Gremlins on the blower 9 May 2005 04:11:49

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