2000 GMC Safari ROARING UNDER HOOD

2000 GMC SAFARI
214,000 MILES • 6 CYL • AWD • AUTOMATIC
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CHIP85
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UPON STARTING THE VAN. A LOUD ROARING SOUND IS HEARD UNDER THE HOOD AND THIS NOISE WAS VERY LOUD THAT COULDN'T BE IGNORED. WHAT COULD IT BE??
Jan 12, 2009 at 6:41 AM
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BILLYMAC
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could be your fan clutch with eng OFF turn fan does it turn easily if yes ok . next remove serp belt turn all pulleys by hand they should turn spin quietly with little effort the bad one will turn rough or hard and noisy usually this is a idler ..good luck billymac
Jan 12, 2009 at 10:01 AM