For 1990-2009 cars only
- Install NEW intake manifold-to-cylinder head gaskets (514).
- Install the intake manifold.
- Apply a 5 mm (0.20 in) band of threadlock GM P/N 12345382 (Canadian P/N 10953489), or equivalent, to the threads of the intake manifold bolts. Refer to Adhesives, Fluids, Lubricants, and Sealers .
- Install the intake manifold bolts.
- Tighten the intake manifold bolts (1-10) a first pass in sequence to 5 N·m (44 lb in).
- Tighten the intake manifold bolts (1-10) a final pass in sequence to 10 N·m (89 lb in).
- Install the manifold absolute pressure (MAP) sensor (714), if previously removed.
- Install the positive crankcase ventilation (PCV) hose - dirty air.
- Install the engine coolant air bleed hose and clamp onto the throttle body.
- Install the accelerator control cable bracket (544) and bolts (545), if applicable.
- Install the evaporative emission (EVAP) canister purge solenoid valve (708), bolt (710), and isolator (709).
Important:
• The intake manifold, throttle body, fuel injection rail and fuel injectors may be removed as an assembly. If not servicing the individual components, install the intake manifold as a complete assembly. • DO NOT use the intake manifold gaskets again. Install NEW intake manifold-to-cylinder head gaskets.
Notice: Refer to Fastener Notice in the Preface section.
Tighten
The electrical connector end of the sensor should be facing the front of the engine.
Tighten
Tighten the accelerator control cable bracket bolts to 10 N·m (89 lb in).
Tighten
Tighten the solenoid valve bolt to 10 N·m (89 lb in).
