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Author Topic: Blower works on AC, sounds like a wounded animal on heat and shuts off  (Read 537 times)

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Offline DGeagle

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Blower motor works fine on AC and blows at all settings, however when on heat, def, or blend, it squalls and works for a while, then eventually stops.  I can go back to AC and it blows full blast again.  Any ideas?  I looked all over the forum but couldnt' find this particular problem. 
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Offline SpreadEagle

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Re: Blower works on AC, sounds like a wounded animal on heat and shuts off
« Reply #1 on: February 07, 2013, 09:55:30 PM »
Mine squalls when I first turn it on but doesn't stop.. I think a bearing in a fan.

Offline carguy87

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Re: Blower works on AC, sounds like a wounded animal on heat and shuts off
« Reply #2 on: February 07, 2013, 10:13:44 PM »
You might have some insulation falling off of your blend door and jamming the motor. Is there any binding in the ac/heat lever?  Try checking for debris in your air box as well.

Offline DGeagle

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Re: Blower works on AC, sounds like a wounded animal on heat and shuts off
« Reply #3 on: February 07, 2013, 10:18:22 PM »
Didn't think about insulation falling off.  It does bind some, but doesnt seem to be any more than any other old car. 
87 Eagle Sedan--86 Eagle Sedan--98 XJ 4.6 stroker--81 Concord--78 Pacer V-8--74 Gremlin V-8- 78 Concord AMX V-8--89 Grand Wagoneers--76 J-10--69,70,71 AMX--71,73 Javelin--70 Rebel Machine, 48 Packard, 47 Nash, Many other AMC's, Fords, and Mopars....
Too Many cars too little time!!

Offline carnuck

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Re: Blower works on AC, sounds like a wounded animal on heat and shuts off
« Reply #4 on: February 08, 2013, 01:54:18 AM »
3 nuts under the hood to pull the motor IF your AC lines aren't routed over it (or cruise, etc) I did mine not long ago.
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