Installation Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Exhaust Manifold & Heat Shield Bolts

Courtesy of GENERAL MOTORS CORP.

Position a NEW exhaust manifold gasket to the cylinder head.
Install the exhaust manifold.

Fig 2: Identifying Exhaust Manifold Bolts

Courtesy of GENERAL MOTORS CORP.

Install the exhaust manifold bolts.
Tighten: Tighten the exhaust manifold heat shield bolts to 20 N.m (15 lb ft).
Install the exhaust manifold heat shield
Install the exhaust manifold heat shield bolts.
Tighten: Tighten the exhaust manifold heat shield bolts to 10 N.m (89 lb in).
Install the catalytic converter. Refer to Catalytic Converter Replacement .

Fig 3: Identifying Exhaust Crossover Pipe

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Install the exhaust crossover pipe (2) to exhaust manifold nuts (1).
Tighten: Tighten the exhaust manifold heat shield bolts to 20 N.m (15 lb ft).
Install the exhaust crossover pipe heat shield (2) and bolts (1).
Tighten: Tighten the exhaust manifold heat shield bolts to 10 N.m (89 lb in).
Position the heater pipes back to the original position.
Install the nut holding the heater pipes onto the throttle body.
Connect the heater hoses to the heater pipes.

Fig 4: Installing The HO2S

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IMPORTANT: Whenever the oxygen sensor is removed, coat the threads with nickel-based anti-seize compound such as GM P/N 5613695 or equivalent.

Install the HO2S.
Tighten: Tighten the exhaust manifold heat shield bolts to 42 N.m (31 lb ft).
Connect the engine harness electrical connector (4) to the HO2S.
Install the ignition coil. Refer to IGNITION COIL REPLACEMENT .

Fig 5: View Of Rear Of Generator

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Install generator. Refer to GENERATOR REPLACEMENT (LZ9) .
Install intake manifold cover, if necessary. Refer to AIR CLEANER INLET DUCT REPLACEMENT .