Drive Belt: Testing and Inspection

ACCESSORY DRIVE BELT DIAGNOSIS

VISUAL DIAGNOSIS










NOTE: Diesel Engine - If a belt is broken or frayed, inspect engine speed sensor (located near the crankshaft damper) for damage.

When diagnosing serpentine accessory drive belts, small cracks that run across the ribbed surface of the belt from rib to rib , are considered normal. These are not a reason to replace the belt. However, cracks running along a rib (not across) are not normal. Any belt with cracks running along a rib must be replaced. Also replace the belt if it has excessive wear, frayed cords or severe glazing.

Refer to ACCESSORY DRIVE BELT DIAGNOSIS CHART for further belt diagnosis.

ACCESSORY DRIVE BELT DIAGNOSIS CHART