Intake Manifold Installation

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Install a new intake manifold gasket.
Install the intake manifold and bolts.
NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Tighten

Tighten the intake manifold bolts from the inside out to 16 N.m (12 lb ft).

Fig 1: Installing Intake Manifold And Bolts

Courtesy of GENERAL MOTORS CORP.

Lubricate the inner diameter of the ends of PCV hose with GM P/N United States 12345884, GM P/N Canada 5728223 or equivalent.
Install the PCV hose.

Fig 2: Installing PCV Hose

Courtesy of GENERAL MOTORS CORP.

Install a new throttle control module gasket.
Install the throttle control module.
Add sealer GM P/N United States 12346004, GM P/N Canada 10953480 to the throttle control module bolt threads.
Install the throttle control module bolts.
Tighten

Tighten the throttle control module bolts to 10 N.m (89 lb in).

Fig 3: Installing Throttle Control Module Bolts

Courtesy of GENERAL MOTORS CORP.