noise. Sometimes it will not make noise &when you start driving and hit a bump in the road it's get noisey again. When you shut it off it squeels & then goes off. What should I do?
I have a 1993 Buick Roadmaster. When I turn the heat on the blower motor makes on 1993 Buick Roadmaster
Sounds like the bearing is going bad in the blower motor. You can remove the blower motor and try to move the motor shaft from side to side if it has play or you spin it by hand and can her a squeel or rubbing noise replace the blower motor.
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bring it to my shop for a replacement motor........