1st Generation S-series (1983-1994) Tech Discuss 1st generation S-series (1983-1994) general tech topics here.

heater motor moans and squeals

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Old Mar 18, 2013 | 06:39 PM
  #11  
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yah mine does it on all 3 of my blazers for the last two years just turn the radio up!!!!
 
Old Mar 18, 2013 | 08:06 PM
  #12  
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that would just drive me nuts.
 
Old Mar 24, 2013 | 10:31 PM
  #13  
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Mine has started doing that, also. I figure it will be warm soon, and since my air doesn't work, I won't have to hear it again till fall!
 
Old Mar 25, 2013 | 11:53 AM
  #14  
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I have a '85 K5 with the same problem. I took the vent hose off of the heater motor and sprayed WD40 into the motor. It's been quiet for two months.
 
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