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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1353 (Engine Mechanical - 4.3L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Intake Manifold Disassemble (LU3)

Intake Manifold Disassemble (LU3)

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the nuts, the studs, and the accelerator control cable bracket.
    Fig 1: Remove Nuts, Studs & Accelerator Control Cable Bracket
    G02106315Courtesy of GENERAL MOTORS CORP.
  2. Remove the throttle body attaching studs.
    Fig 2: Remove Throttle Body Attaching Studs
    G02106316Courtesy of GENERAL MOTORS CORP.
  3. Remove the throttle body.
  4. Remove the throttle body to upper intake manifold gasket.
  5. Discard the throttle body to upper intake manifold gasket.
    Fig 3: Remove Throttle Body & Upper Intake Manifold Gasket
    G02106317Courtesy of GENERAL MOTORS CORP.
  6. Remove the water outlet studs.
  7. Remove the water outlet (1 or 2).
  8. Remove the engine coolant thermostat.
    Fig 4: Remove Water Outlet & Studs
    G02106318Courtesy of GENERAL MOTORS CORP.
  9. Remove the engine coolant temperature (ECT) sensor plug (1) or the ECT sensor (2) from the front of the lower intake manifold, if equipped.
    Fig 5: Remove Engine Coolant Temperature (ECT) Sensor & Plug
    G02106319Courtesy of GENERAL MOTORS CORP.
  10. Remove the studs and the ignition coil.
    Fig 6: Remove Studs & Ignition Coil
    G02106320Courtesy of GENERAL MOTORS CORP.
  11. Remove the manifold absolute pressure (MAP) sensor.
  12. Remove the MAP sensor seal from the MAP sensor.
  13. Discard the MAP sensor seal.
    Fig 7: Remove MAP Sensor & Seal
    G02106321Courtesy of GENERAL MOTORS CORP.
  14. Remove the fuel pipe bolt (4).
  15. Remove the fuel pipe retainer nuts (1).
  16. Remove the fuel pipe retainer (2).
  17. Remove the fuel pipe (3).
  18. Remove and discard the fuel seal retainers (5).
  19. Remove and discard the fuel seals (6), yellow O-rings.
  20. Remove and discard the spacer rings (7), flat washers.
  21. Remove and discard the fuel seals (8), black O-rings.
    Fig 8: Fuel Pipe & Components
    G02106322Courtesy of GENERAL MOTORS CORP.
  22. Remove the studs and the evaporative emission (EVAP) canister purge solenoid valve.
  23. Remove the nut and the engine wiring harness bracket.
    Fig 9: Remove Evaporative Emission (EVAP) Canister Purge Solenoid Valve & Studs
    G02106323Courtesy of GENERAL MOTORS CORP.
  24. Remove the upper intake manifold attaching studs.
  25. Remove the upper intake manifold.
  26. Remove the upper intake manifold to lower intake manifold gasket.
  27. Discard the upper intake manifold to lower intake manifold gasket.
    Fig 10: Remove Upper Intake Manifold Attaching Studs & Intake Manifold
    G02106324Courtesy of GENERAL MOTORS CORP.
  28. Remove the fuel meter body seal and discard.
  29. Remove the 6 injectors from the lower intake manifold bores.
  30. Remove the fuel meter body.
  31. Remove the bolt and the fuel meter body bracket.
    Fig 11: Remove Fuel Injectors
    G02106325Courtesy of GENERAL MOTORS CORP.
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