Removal Procedure

WARNING: Always wear protective goggles and gloves when removing exhaust parts as falling rust and sharp edges from worn exhaust components could result in serious personal injury.

NOTE: When jacking or lifting the vehicle from the frame side rails, be certain lift pads do not contact the three-way catalytic converter as damage to the converter will result.

NOTE: Replacement of exhaust system parts must be OEM standard to ensure that the vehicle operates as designed.

Raise and suitably support the vehicle. Refer to LIFTING & JACKING THE VEHICLE in General Information.
Remove the exhaust manifold pipe to manifold flange bolts.

Fig 1: Exhaust Manifold Pipe To Manifold Flange Bolts

Courtesy of GENERAL MOTORS CORP.

Remove the exhaust manifold pipe from the exhaust manifold
Remove and discard the seal.