Notice: Routine inspection of the drive 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 slipping occurs or if sections of the belt ribs are missing.

Important: The indicator on the movable portion of the tensioner must be within the limits of the tolerance marks of the stationary portion of the tensioner. Any reading outside of these marks indicates either a defective belt or tensioner.

1. Inspect the belt length scale on the drive belt tensioner for the proper installed length. If the belt length scale does not indicate the proper installed length, install a new drive belt.
2. Disconnect the negative battery cable. Refer to

   Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

   in General Information.
3. Lift the drive belt tensioner downward off the serpentine drive belt using a socket and handle on the tensioner pulley bolt.
4. Remove the drive belt.

1. Install the drive belt over the tensioner pulley by pushing down on the drive belt tensioner. Be sure that the drive belt is aligned into the proper grooves of the accessory drive pulleys.
2. Connect the negative battery cable.