Removal Procedure

WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the oxygen sensor electrical connector.
Remove the 3 nuts attaching exhaust crossover pipe to the right exhaust manifold. Refer to Exhaust Crossover Pipe Replacement (LNJ) .
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

Fig 1: View Of Catalytic Converter & Nuts

Courtesy of GENERAL MOTORS CORP.

Remove the nuts (3) securing the catalytic converter (4) to the exhaust manifold and position catalytic converter out of the way. Refer to Catalytic Converter Replacement .

Fig 2: View Of Right Exhaust Manifold Heat Shields & Bolts

Courtesy of GENERAL MOTORS CORP.

Remove the exhaust manifold heat shield bolts (3).
Remove the exhaust manifold heat shields (1, 2).

Fig 3: View Of Right Exhaust Manifold, Gasket & Nuts

Courtesy of GENERAL MOTORS CORP.

Remove the exhaust manifold nuts (3).
Remove the exhaust manifold (2).
Remove the exhaust manifold gasket (1).
If you are REPLACING the engine right side exhaust manifold, remove the heated oxygen sensor (HO2S). Refer to Heated Oxygen Sensor Replacement - Sensor 1 .

Fig 4: View Of Right Exhaust Manifold Studs

Courtesy of GENERAL MOTORS CORP.

If necessary, remove the exhaust manifold studs.
Clean the exhaust manifold and the cylinder head exhaust manifold sealing surfaces.