Ac fan not working sometimes

134,218 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC
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JERW12345
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Having problems with my air conditioner fan. It works occasionally. I just want to know what the problem might be and how I might fix it? Thanks.
Mar 19, 2016 at 2:02 PM
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STRAILER
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  • 55,721 POSTS
Hey Jerw12345,

It sounds like the blower motor itself has gone bad, here is an example on how to replace and test it.

https://www.2carpros.com/articles/blower-motor-testing

When it is not working if you hit a bump does it start up again? This is a classic blower motor failure symptom.

Please let us know how it goes.
Mar 19, 2016 at 2:40 PM
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JDL
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Are you talking about the blower motor? If so, did you check good voltage and ground at the blower motor connector when problem is ongoing? If good voltage and ground with no blower action, suspect the blower motor. Sometimes those small motor brushes will wear down, if that happens, a vibration or bump may reset the brushes, momentarily, and the motor runs for a bit, then same old problem.
Mar 19, 2016 at 2:47 PM
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JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
Hi Ken, didn't see you, have a good day.
Mar 19, 2016 at 2:48 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,721 POSTS
No problem the more input the merrier :-)
Mar 19, 2016 at 3:07 PM
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