Intake Manifold Installation

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 reuse intake manifold gaskets. Install NEW intake manifold-to-cylinder head gaskets.

1. Install NEW intake manifold-to-cylinder head gaskets (1).
   Fig 1: Intake Manifold-To-Cylinder Head Gasket

   Courtesy of GENERAL MOTORS CORP.
2. Install the intake manifold.
3. Apply a 5 mm (0.20 in) band of threadlock GM P/N United States 12345382, GM P/N Canada 10953489, or equivalent, to the threads of the intake manifold bolts. Refer to Sealers, Adhesives, and Lubricants .
   Fig 2: Intake Manifold

   Courtesy of GENERAL MOTORS CORP.
   NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
4. Install the intake manifold bolts.

   Tighten 

   1. 4.1. Tighten intake manifold bolts first pass in sequence to 5 N.m (44 lb in).
   2. 4.2. Tighten intake manifold bolts final pass in sequence to 10 N.m (89 lb in).
   Fig 3: Intake Manifold Bolt Tightening Sequence

   Courtesy of GENERAL MOTORS CORP.
5. Install the Manifold Absolute Pressure (MAP) sensor (1), if previously removed.

   The electrical connector end of the sensor should be facing the front of the engine.

   Fig 4: MAP Sensor

   Courtesy of GENERAL MOTORS CORP.
6. Install the Positive Crankcase Ventilation (PCV) valve (2) and hose (1).
7. Install the engine coolant air bleed hose and clamp onto the throttle body.
   Fig 5: PCV Valve & Hose

   Courtesy of GENERAL MOTORS CORP.
8. Install the accelerator control cable bracket (2) and bolts (1), if applicable.

   Tighten 

   Tighten the accelerator control cable bracket bolts to 10 N.m (89 lb in).

   Fig 6: Accelerator Control Cable Bracket & Bolts

   Courtesy of GENERAL MOTORS CORP.
9. Install the evaporative emission (EVAP) purge solenoid (3), bolt (2), and isolator (1).

   Tighten 

   Tighten the solenoid bolt to 10 N.m (89 lb in).

   Fig 7: EVAP Purge Solenoid, Bolt & Isolator

   Courtesy of GENERAL MOTORS CORP.