Step 2: Using the 3/8 drive ratchet handle, insert the square peg into the belt tensioner. By turning the tensioner bolt CLOCKWISE, you can release the tension on the belt.
Step 3: Remove the serpentine belt from the vehicle. SLOWLY release the belt tensioner to its resting position.
Step 4: Using the routing diagram posted near the radiator, on the UNDERSIDE of the hood, or in the owner's manual, route the serpentine belt around the proper pulleys.
Step 5: Turn the belt tensioner COUNTER CLOCKWISE using the 3/8 drive ratchet, increasing the tension on the belt and securing its position.
NOTE: The belt should be taut, but not stretched or overly tight!
These Part Change / Installation Instructions Apply to
0 Trailblazer, GMC Envoy Engine Fan, Serpentine Belt Replacement Instructions
