humming noise on 2002 GMC Yukon XL Denali

What makes a humming noise when accelerating and jerks when the vehicle is accelerating?

by in Yuma, AZ on May 12, 2009
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1 answer
ANSWER by , August 23, 2009
The Humming noise could be caused by a Drive Belt incorrectly routed/adjusted, missing or worn out. Inspect also the Fan Clutch and A/C components.