LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1018 (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 2004 GMC Sierra and 2004 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.
    2. Fig 1: Removing Accelerator Control Cable Bracket
    GM374902Courtesy of GENERAL MOTORS CORP.
  2. Remove the throttle body attaching studs.
    3. Fig 2: View Of Throttle Body & Attaching Studs
    GM12852Courtesy of GENERAL MOTORS CORP.
  3. Remove the throttle body.
  4. Remove the throttle body to upper intake manifold gasket.
    5. Fig 3: View Of Throttle Body & Gasket
    GM12853Courtesy of GENERAL MOTORS CORP.
  5. Discard the throttle body to upper intake manifold gasket.
  6. Remove the water outlet studs.
  7. Remove the water outlet (1 or 2).
    8. Fig 4: Removing Water Outlet
    GM480559Courtesy of GENERAL MOTORS CORP.
  8. Remove the engine coolant thermostat.
  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.
    10. Fig 5: ECT Sensor & Plug
    GM480566Courtesy of GENERAL MOTORS CORP.
  10. Remove the studs and the ignition coil.
    11. Fig 6: Removing Ignition Coil & Studs
    GM480561Courtesy of GENERAL MOTORS CORP.
  11. Remove the manifold absolute pressure (MAP) sensor.
    12. Fig 7: Removing MAP Sensor
    GM480562Courtesy of GENERAL MOTORS CORP.
  12. Remove the MAP sensor seal from the MAP sensor.
  13. Discard the MAP sensor seal.
  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.
    22. Fig 8: Fuel Pipes & Components
    GM334517Courtesy of GENERAL MOTORS CORP.
  22. Remove the studs and the evaporative emission (EVAP) canister purge solenoid valve.
    23. Fig 9: Removing EVAP Canister Purge Solenoid Valve
    GM334511Courtesy of GENERAL MOTORS CORP.
  23. Remove the nut and the engine wiring harness bracket.
  24. Remove the upper intake manifold attaching studs.
  25. Remove the upper intake manifold.
    26. Fig 10: Removing Upper Intake Manifold
    GM869159Courtesy of GENERAL MOTORS CORP.
  26. Remove the upper intake manifold to lower intake manifold gasket.
  27. Discard the upper intake manifold to lower intake manifold gasket.
    28. IMPORTANT: During the removal of the fuel injector assembly, the retainers that hold the injectors into the intake manifold may become worn. This is OK. Upon installation of the upper intake manifold, the injectors will be held fully seated, thus keeping them from backing out of the lower intake manifold.
  28. Remove the fuel meter body seal and discard.
  29. Remove the 6 injectors from the lower intake manifold bores.
    30. Fig 11: Removing Injectors From Lower Intake Manifold Bores
    GM859867Courtesy of GENERAL MOTORS CORP.
  30. Remove the fuel meter body.
  31. Remove the bolt and the fuel meter body bracket.
scientia non olet · About LEMON Manuals