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Intake Manifold Installation

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Intake Manifold-To-Cylinder Head Gasket
    GM1277097Courtesy of GENERAL MOTORS CORP.
    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 old intake manifold gaskets again. Install NEW intake manifold-to-cylinder head gaskets.
  1. Install NEW intake manifold-to-cylinder head gaskets (514).
    2. Fig 2: View Of Intake Manifold & Bolts
    GM1201541Courtesy of GENERAL MOTORS CORP.
  2. Install the intake manifold.
  3. 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 Sealers, Adhesives, and Lubricants .
    4. Fig 3: Identifying Intake Manifold Bolt Tightening Sequence
    GM63222Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  4. Install the intake manifold bolts.

    Tighten: 

    1. Tighten intake manifold bolts (1-10) a first pass in sequence to 5 N.m (44 lb in).
    2. Tighten intake manifold bolts (1-10) a final pass in sequence to 10 N.m (89 lb in).

    5. Fig 4: View Of MAP Sensor
    GM1277093Courtesy of GENERAL MOTORS CORP.
  5. Install the manifold absolute pressure (MAP) sensor (714), if previously removed.

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

    6. Fig 5: View Of Throttle Body To Valve Rocker Arm Cover PCV Hose
    GM1235681Courtesy of GENERAL MOTORS CORP.
  6. Install the positive crankcase ventilation (PCV) hose - fresh air.
    7. Fig 6: View Of PCV Hose
    GM1201537Courtesy of GENERAL MOTORS CORP.
  7. Install the PCV hose - dirty air.
  8. Install the engine coolant air bleed hose and clamp onto the throttle body.
    9. Fig 7: View Of EVAP Purge Solenoid, Bolt & Isolator
    GM1277094Courtesy of GENERAL MOTORS CORP.
  9. Install the evaporative emission (EVAP) canister purge solenoid valve (708), bolt (710), and isolator (709).

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

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