Lumina V6-191 3.1L VIN T MFI (1993)
Drive Belt: Testing and Inspection
Serpentine Belt
NOTICE: Routine inspection of the belt may reveal cracks in the belt ribs. These cracks will not impair belt performance and therefore should not be
considered a problem requiring belt replacement. However, the belt should be replaced if belt slip occurs or if sections of the belt ribs are missing.
Inspect
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If fraying of belt is noticed, check to make sure both the belt and tensioner assembly are properly aligned and that the belt edges are not in
contact with the flanges of the tensioner pulley.
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If, while adjusting belt tension, tensioner runs out of travel, the belt has stretched beyond adjustment and should be replaced.
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If a whining noise is heard around tensioner or idler assemblies, check for possible bearing failure.