Dodge Durango

 Service Manual

Cooling System » Removal and installation
Accessory belt replacement-4.7L engine

NOTE: The belt routing schematics are published from the latest information available at the time of publication. If anything differs between these schematics and the Belt Routing Label, use the schematics on Belt Routing Label. This label is located in the engine compartment.

REMOVAL

CAUTION: DO NOT LET TENSIONER ARM SNAP BACK TO THE FREEARM POSITION, SEVER DAMAGE MAY OCCUR TO THE TENSIONER.

Belt tension is not adjustable. Belt adjustment is maintained by an automatic ( spring load ) belt tensioner.

(1) Disconnect negative battery cable from battery.

(2) Rotate belt tensioner until it contacts it's stop.

Remove belt, then slowly rotate the tensioner into the freearm position. (Fig. 59).

Fig. 59 Belt Routing-4.7L

1 - GENERATOR PULLEY

2 - ACCESSORY DRIVE BELT

3 - POWER STEERING PUMP PULLEY

4 - CRANKSHAFT PULLEY

5 - IDLER PULLEY

6 - TENSIONER

7 - A/C COMPRESSOR PULLEY

8 - WATER PUMP PULLEY

INSTALLATION

Belt tension is not adjustable. Belt adjustment is maintained by an automatic ( spring load ) belt tensioner.

(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 (Fig. 59).

(2) Install new belt (Fig. 59). Route the belt around all pulleys except the idler pulley. Rotate the tensioner arm until it contacts it's stop position.

Route the belt around the idler 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 (Fig. 60). On 4.7L Engines only, the gap between the tang and the housing stop ( measurement A ) must not exceed 24 mm (.94 inches). If the measurement exceedes this specification replace the serpentine accessory drive belt.

Fig. 60 Accessory Drive Belt Wear Indicator-4.7L Engine

1 - AUTOMATIC TENSIONER ASSEMBLY

Water pump-5.2L/5.9L engines

Water pump 4.7L engines

Water pump bypass hose-5.2L/5.9L engines

Thermostat-5.2L/5.9L engine

Thermostat- 4.7L engine

Radiator

Block heater

Accessory drive belt-5.2L/5.9L engine

Accessory belt replacement-4.7L engine

Automatic belt tensioner-5.2L/5.9L engine

Automatic belt tensioner-4.7L engine

Radiator draincock

Viscous fan drive