Loosen the water pump pulley mounting bolts.

Remove the drive belt.

Remove the alternator.

Remove the water pump pulley.

Remove the drive belt auto-tensioner (A).

Check for oil leakage from the drive belt auto-tensioner dumper and check for damaged to the dumper rubber (B). If the damage or oil leaks, replace the drive belt auto-tensioner.

Install the drive belt auto-tensioner, then do the auto-tensioner air bleeding.

Install the water pump pulley.

Install the alternator.

Install the drive belt.