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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 Cleaning and Inspection >> Cleaning Procedure

Cleaning Procedure

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    Fig 1: View Of Intake Manifold-To-Cylinder Head Gasket
    GM1277097Courtesy of GENERAL MOTORS COMPANY
  1. Remove and discard the intake manifold-to-cylinder head gaskets (514).
    2. Fig 2: View Of Intake Manifold & Bolts
    GM1403311Courtesy of GENERAL MOTORS COMPANY
  2. Remove the manifold absolute pressure (MAP) sensor. Refer to Intake Manifold Removal (Without Active Fuel Management) , Intake Manifold Removal (With Active Fuel Management) .
  3. Remove the evaporative emission (EVAP) canister purge solenoid valve, EVAP tubes, and fuel rail with injectors (500). Refer to Fuel Rail and Injectors Removal .
  4. Remove the throttle body and gasket. Refer to Throttle Body Assembly Removal .
  5. Clean the intake manifold in solvent.
    6. WARNING:

    Refer to Safety Glasses and Compressed Air Warning .

  6. Dry the intake manifold with compressed air.
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