Installation Procedure

Important:  To assist in installing the exhaust manifold to the engine, the tabs on a NEW exhaust manifold gasket will hold the gasket and the bolts in place.

1. Sub-assemble the NEW gaskets, the spark plug wire shields, and the bolts to the exhaust manifold.
2. Ensure that the exhaust manifold bolts are held in place by the tabs on the exhaust manifold gaskets.
   Fig 1: Identifying Exhaust Manifold Gasket Tabs

   Courtesy of GENERAL MOTORS CORP.
3. Install the exhaust manifold. Refer to Exhaust Manifold Replacement - Left .
   • Tighten the 2 rear exhaust manifold bolts through the engine cover opening.
   • Tighten the front 4 exhaust manifold bolts through the wheelhouse.
4. Install the spark plug wires to the spark plugs. Refer to SPARK PLUG WIRE in Removal and Installation in Engine Performance.
   NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
5. Install the spark plug wire support and bolts.

   Tighten 

   Tighten the spark plug wire support bolts to 12 N.m (106 lb in).

   Fig 2: Installing Spark Plug Wire Support And Bolts

   Courtesy of GENERAL MOTORS CORP.
6. Install the catalytic converter assembly. Refer to CATALYTIC CONVERTER REPLACEMENT (RWD)  or CATALYTIC CONVERTER REPLACEMENT (A4WD)  .
7. Install the fender wheelhouse extension.
   Fig 3: Installing Fender Wheelhouse Extension

   Courtesy of GENERAL MOTORS CORP.
8. Install the left front tire. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION in Tires and Wheels.
9. Lower the vehicle.
10. Connect the ECT sensor electrical connector.
    Fig 4: Connecting ECT Sensor Electrical Connector

    Courtesy of GENERAL MOTORS CORP.
11. Install the engine cover. Refer to ENGINE COVER REPLACEMENT in Interior Trim.