Drive Belt Replacement 4.3L

1. Install a 3/8 inch drive breaker bar on the tensioner arm and rotate the arm counterclockwise.
2. Remove the drive belt.
3. Slowly release the tension.

1. Route the belt over all the pulleys except the tensioner arm.



2. Observe belt routing for vehicles without air conditioning.



3. Observe belt routing for vehicles with air conditioning.



4. Install a 3/8 inch drive breaker bar on the tensioner arm and rotate the arm counterclockwise.
5. Install the belt over the tensioner arm pulley.
6. Slowly release the tension.
7. Confirm that the belt is properly routed.