Installation Procedure

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

Install the new exhaust manifold gasket.
Install the exhaust manifold.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the exhaust manifold bolts and the nuts.
Tighten

Tighten the bolts and the nuts to 30 N.m (22 lb ft).

Fig 1: Installing Exhaust Manifold, Gasket, Bolts & Nuts
Courtesy of GENERAL MOTORS CORP.
Install the exhaust manifold heat shield.

Fig 2: Installing Exhaust Manifold Heat Shield & Nuts
Courtesy of GENERAL MOTORS CORP.
Install the exhaust manifold heat shield nuts.
Tighten

Tighten the nuts to 20 N.m (15 lb ft).
Install the engine lift bracket.

Fig 3: Installing Engine Lift Bracket & Nut
Courtesy of GENERAL MOTORS CORP.
Install the engine lift bracket bolt and the nut.
Tighten

Tighten the bolt and the nut to 30 N.m (22 lb ft).
Install the oil level indicator tube. Refer to OIL LEVEL INDICATOR AND TUBE REPLACEMENT in Engine Mechanical - 3.8L.
Install the left spark plugs to cylinders 1, 3 and 5. Refer to SPARK PLUGS in Self-Diagnostics - 3.8L.
Install the exhaust crossover bolts to the left exhaust manifold.
Tighten

Tighten the bolts to 20 N.m (15 lb ft).

Fig 4: Installing Exhaust Crossover Bolts
Courtesy of GENERAL MOTORS CORP.
Install the lower right engine mount strut bracket. Refer to ENGINE MOUNT STRUT BRACKET REPLACEMENT - RIGHT LOWER in Engine Mechanical - 3.8L.
Install the engine mount struts. Refer to ENGINE MOUNT STRUT REPLACEMENT - RIGHT and ENGINE MOUNT STRUT REPLACEMENT - LEFT in Engine Mechanical - 3.8L.
Install the fuel injector sight shield. Refer to FUEL INJECTOR SIGHT SHIELD REPLACEMENT (L36) or FUEL INJECTOR SIGHT SHIELD REPLACEMENT (L67) in Engine Mechanical - 3.8L.
Connect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE in Battery.