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1993 GMC heater

jkwiat1's Avatar
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11-30-03, 05:37 AM   #1  
1993 GMC heater

I have a 93 GMC Vandura that this past winter sometimes the heater blower does not come on when I push the lever. Then it starts by itself maybe 5-10 minutes later or it will start and as I am driving it will turn on and off ?

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billys68ss's Avatar

Join Date: May 2003
Posts: 1,459

11-30-03, 02:29 PM   #2  
Sounds like a short somewhere. Check current to the fan with a test light and check the operation of the fan from a known good power source.
Hope this is helpful to ya,

dirty dan's Avatar

Join Date: Mar 2002
Posts: 438

12-02-03, 12:54 PM   #3  
Check the ground wire on the blower motor. Sounds like it's loose.

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