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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Engine Mechanical) >> Repair Instructions >> On-Vehicle Repair Instructions >> Intake Manifold Replacement >> Installation Procedure

Installation Procedure

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 Gasket
    GM492770Courtesy of GENERAL MOTORS CORP.
  1. Install new intake manifold gaskets (1) to the intake manifold.
  2. Fig 2: Intake Manifold
    GM863069Courtesy of GENERAL MOTORS CORP.
  3. Install the intake manifold.
  4. Apply a 5 mm (0.20 in) band of threadlock to the threads of the intake manifold bolts. Refer to Sealers, Adhesives, and Lubricants  for the correct part number.
  5. Fig 3: Identifying Intake Manifold Bolt Tightening Sequence
    GM63222Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  6. Install the intake manifold bolts.

    Tighten: 

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

  7. Fig 4: View Of EVAP Purge Solenoid Vent Tube
    GM372717Courtesy of GENERAL MOTORS CORP.
  8. Install the EVAP purge solenoid vent tube to the solenoid (1) and vapor pipe.
  9. Fig 5: View Of Manifold Absolute Pressure (MAP) Sensor
    GM863068Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Lightly coat the MAP sensor seal with clean engine oil before installing.
  10. Install the MAP sensor (1) to the intake manifold.
  11. Route the electrical harness into position over the engine.
  12. Fig 6: View Of MAP Sensor & Knock Sensor Electrical Connectors
    GM679510Courtesy of GENERAL MOTORS CORP.
  13. Connect the knock sensor harness electrical connector to the intake manifold.
  14. Connect the following electrical connectors.
    • MAP sensor (1)
    • Knock sensor (2)
  15. Install the fuel injectors. Refer to Fuel Injector Replacement .
  16. Install the throttle body. Refer to Throttle Body Assembly Replacement .