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DRIVE BELT EXCESSIVE WEAR DIAGNOSIS Diagnostic Aids Excessive wear on a drive belt(s) is usually caused by an incorrect installation or the wrong drive Go to Step 2 Mechanical 2 Inspect for a damaged drive belt. Go to Step 3 Go to Step 4 3 Install a new drive belt. Refer to Drive Belt Go to Step 4 System OK 4 Inspect for misalignment of the pulleys. Go to Step 12 Go to Step 5 5 Inspect for a bent or dented pulley. Go to Step 12 Go to Step 6 6 Inspect for a bent or a cracked bracket. Go to Step 12 Go to Step 7 7 Inspect for improper, loose or missing fasteners. Go to Step 8 Go to Step 9 8 1. Tighten any loose fasteners. 2. Replace improper or missing fasteners. Refer to Fastener Tightening Specifications. Does the drive belt continue to fall off? Go to Step 9 System OK 9 Test the drive belt tensioner for operating Go to Step 11 Go to Step 10 10 Replace the drive belt tensioner. Refer to Drive Go to Step 11 System OK 11 Inspect for failed drive belt idler and drive belt Go to Step 12 Go to Diagnostic Aids 12 Operate the system in order to verify the repair. System OK Go to Step 2
2006 Hummer H3 2006 ENGINE Engine Mechanical - 3.5L (L52) - H3
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