Drive Belt: Service and Repair

BELTS - DRIVE

REMOVAL - 3.7L/4.7L





CAUTION
Do not let tensioner arm snap back to the free-arm position, severe damage may occur to the tensioner.

Belt tension is not adjustable. Belt adjustment is maintained by an accessory drive belt tensioner.

1. Disconnect negative battery cable from battery.
2. Rotate belt tensioner (6) until it contacts the stop. Remove belt (2), then slowly rotate the tensioner (6) into the free arm position.

CLEANING
Clean all foreign debris from belt pulley grooves. The belt pulleys must be free of oil, grease, and coolants before installing the drive belt.

INSTALLATION - 3.7L/4.7L





1. Check condition of all pulleys.

CAUTION
When installing the serpentine accessory drive belt, the belt MUST be routed correctly. If not, the engine may overheat due to the water pump rotating in the wrong direction.





2. Install new belt. Route the belt around all pulleys except the idler pulley (5). Rotate the tensioner arm until it contacts it's stop position. Route the belt around the idler (5) and slowly let the tensioner rotate into the belt. Make sure the belt is seated onto all pulleys.
3. With the drive belt installed, inspect the belt wear indicator. On 4.7L Engines only, the gap between the tang and the housing stop must not exceed 24 mm (0.94 inches). If the measurement exceeds this specification replace the serpentine accessory drive belt.