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Hi I have a 2004 chevrolet classic automatic. When I slow down at a stop light my car acts like it is going to shut off on me. I notice a humming sound right before it starts trying to shut off. And when I take off I here a clunk sound. It does not happen every time I am driving but it been happening more often lately. Could someone help me out?
I Have a Sierra 1500 crew cab with 152,900 miles . I change the oil every 3000 miles and maintain the truck-- new struts and bridgestones evos last year. In the past month I hear a short humming sound ( Like a cell phone vibrating) behind the rear seat,periodically while driving. I am wondering if this could be the fuel pump in the gas tank and it may be ...

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