Removal Procedure

Remove the engine mount bracket. Refer to Engine Mount Bracket Replacement - Right Side .
Rotate the drive belt tensioner pulley bolt (1) in the direction shown until the bore (2) aligns with the bore in the engine front cover, using a TORX wrench and hold in position.

Fig 1: Drive Belt Tensioner Pulley And Bolt
Courtesy of GENERAL MOTORS COMPANY
Install a suitable punch (1) through the drive belt tensioner bore (2) to the engine front cover bore to fix the tensioner in position.

Fig 2: Punch Inserted In Drive Belt Tensioner Bore
Courtesy of GENERAL MOTORS COMPANY
Remove the drive belt (1).

Fig 3: Drive Belt
Courtesy of GENERAL MOTORS COMPANY
Move the drive belt tensioner until the punch can be removed and remove the punch from the engine front cover bore and drive belt tensioner bore.
Remove the upper drive belt tensioner bolt (2).

Fig 4: Drive Belt Tensioner And Bolts
Courtesy of GENERAL MOTORS COMPANY
Remove the lower drive belt tensioner bolt (3).
Remove the drive belt tensioner (1).