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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 528 (Engine Mechanical - 5.3L, 6.0L, 6.2L - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Intake Manifold Installation (With Active Fuel Management)

Intake Manifold Installation (With Active Fuel Management)

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    Fig 1: View Of Intake Manifold-To-Cylinder Head Gasket
    GM1277097Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • 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.
  1. Install NEW intake manifold-to-cylinder head gaskets (514).
    2. Fig 2: Intake Manifold
    GM1401989Courtesy of GENERAL MOTORS COMPANY
  2. Install the intake manifold (500).
  3. Apply a 5 mm (0.20 in) band of threadlock GM P/N 12345382 (Canadian P/N 10953489) to the threads of the intake manifold bolts (512). Refer to Adhesives, Fluids, Lubricants, and Sealers .
    4. Fig 3: Identifying Intake Manifold Bolt Tightening Sequence
    GM1552512Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  4. Install the intake manifold bolts.
    1. Tighten the intake manifold bolts (1-10) a first pass in sequence to 5 N.m (44 lb in).
    2. Tighten the intake manifold bolts (1-10) a final pass in sequence to 10 N.m (89 lb in).
    5. Fig 4: MAP Sensor
    GM1401987Courtesy of GENERAL MOTORS COMPANY
  5. Install the fuel rail. Refer to Fuel Rail and Injectors Installation .
  6. Lubricate the manifold absolute pressure (MAP) sensor grommet (715) with clean engine oil.
  7. Install the grommet onto the MAP sensor (714).
  8. Install the MAP sensor and retainer (736).
    9. Fig 5: View Of PCV Dirty-Air Hose
    GM1658148Courtesy of GENERAL MOTORS COMPANY
  9. Install the positive crankcase ventilation (PCV) hose - dirty air (716).
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