I have a 1993 Buick Roadmaster. When I turn the heat on the blower motor makes
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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?
RepairPal Certified shops can diagnose and repair your 1993 Buick Roadmaster. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
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.