Removal Procedure

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: In order to avoid being burned, do not service the exhaust system while it is still hot. Service the system when it is cool.

CAUTION: 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.

Fig 1: Identifying Exhaust Manifold Front Pipe Bolts

Courtesy of GENERAL MOTORS CORP.

Remove the rear exhaust manifold pipe. Refer to Exhaust Manifold Pipe Replacement - Rear .
Remove the transaxle. Refer to Transmission Replacement .
Remove the front exhaust pipe to exhaust manifold bolts (2).

Fig 2: Identifying EGR Valve Inlet Pipe
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: The exhaust gas recirculation (EGR) valve inlet pipe incorporates a crush seal connection at the water pump housing. The EGR valve inlet pipe must be replaced if disconnected from the water pump housing.
Disconnect the EGR inlet pipe nut from the front exhaust manifold pipe.

Fig 3: Identifying Front Exhaust Manifold Pipe

Courtesy of GENERAL MOTORS CORP.

Remove the front exhaust manifold pipe to lower crankcase bolt.
Remove the front exhaust manifold pipe to cylinder head stud.
Remove the front exhaust manifold pipe.
Remove the front exhaust manifold pipe seal from the left exhaust manifold and discard the seal.
Remove the exhaust manifold flange retainer.