Fan blower does not come on but makes a high pitch sound. It will come on ever so often and sounds fine. Do I need to replace the motor or relay?
Mar 15, 2013 at 12:52 AM
1997 CHEVROLET S-10
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The noise you are hearing sounds like the bearing in the blower motor. The relay wouldn't make noise.
Mar 15, 2013 at 12:58 AM