Removal Procedure

WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Refer to Exhaust Service Warning

WARNING:

Refer to Protective Goggles and Glove Warning .

Fig 1: Identifying Exhaust Manifold Front Pipe Bolts

Courtesy of GENERAL MOTORS COMPANY

Remove the rear exhaust manifold pipe. Refer to Exhaust Manifold Rear Pipe Replacement .
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 COMPANY

NOTE:

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 COMPANY

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.