Installation Procedure

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Install a new intake manifold gasket.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the intake manifold onto the engine and secure the manifold with the bolts.
Tighten

Tighten the intake manifold bolts to 10 N.m (89 lb in).
Install the generator. Refer to GENERATOR REPLACEMENT (4.2L ENGINE) or in Engine Electrical.
Install the brake hose to the booster.
Lubricate the inner diameter of the crankcase ventilation hose with GM P/N 12345884 (Canadian P/N 5728223) or equivalent.

Fig 1: Installing Intake Manifold
Courtesy of GENERAL MOTORS CORP.
Install the crankcase ventilation hose.
Install the MAP sensor electrical connector.

Fig 2: Installing Crankcase Ventilation Hose
Courtesy of GENERAL MOTORS CORP.
Install the engine harness bracket. Secure the bracket with the bolt.
Tighten

Tighten the engine harness bracket bolt to 50 N.m (37 lb ft).

Fig 3: Installing Engine Harness Bracket
Courtesy of GENERAL MOTORS CORP.
Install the front differential vent hose to the engine harness bracket clip.
Install all harnesses to the original location onto the engine harness bracket.
Install the PCM. Refer to POWERTRAIN CONTROL MODULE .
Install the throttle body. Refer to THROTTLE BODY .

Fig 4: Installing Harnesses Onto Engine Harness Bracket
Courtesy of GENERAL MOTORS CORP.