Installation - 4.7L Engine

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Accessory Drive Belt Wear Indicator

Courtesy of DAIMLERCHRYSLER CORP.

1 - AUTOMATIC TENSIONER ASSEMBLY

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.

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

Check condition of all pulleys.
Install new belt (Refer to COOLING/ACCESSORY DRIVE/DRIVE BELTS - INSTALLATION) . Route the belt around all pulleys except the idler pulley. Rotate the tensioner arm until it contacts its 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.
With the drive belt installed, inspect the belt wear indicator. See Fig 1. On 4.7L Engines the gap between the tang and the housing stop (measurement A) must not exceed 24 mm (.94 inches).