2008 Chevy Trailblazer Serpentine belt tensioner

Drive Belt Replacement Removal Procedure 1. Install 3/8 inch breaker bar on the drivebelt tensioner arm and turn the breaker bar clockwise enough to relieve the tension on the drivebelt. 2. Remove the drivebelt. 3. Release the tension on the tensioner arm. Installation Procedure 1. Route the drivebelt over all the pulleys except the drivebelt tensioner pulley. 2. Install the 3/8 inch breaker bar on the drivebelt tensioner arm and turn the breaker bar clockwise. 3. Install the drivebelt over the drivebelt tensioner pulley. 4. Slowly release the tension to the drivebelt tensioner arm. 5. Inspect for proper installation of the drivebelt on the pulleys. There you go.