1993 GMC heater


Old 11-30-03, 05:37 AM
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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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Old 11-30-03, 02:29 PM
billys68ss's Avatar
Join Date: May 2003
Location: USA
Posts: 1,459
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,
Old 12-02-03, 12:54 PM
Join Date: Mar 2002
Location: Louisiana
Posts: 438
Check the ground wire on the blower motor. Sounds like it's loose.

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