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 906 (Engine Mechanical - 4.3L (LU3)) >> 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 Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. 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: Removing Accelerator Control Cable Bracket
    G01977913Courtesy of GENERAL MOTORS CORP.
  2. Remove the throttle body attaching studs.
    Fig 2: Removing Throttle Body Attaching Studs
    G01977914Courtesy 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: Removing Throttle Body
    G01977915Courtesy 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: Removing Water Outlet & Engine Coolant Thermostat
    G01977916Courtesy 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: Removing ECT Sensor
    G01977917Courtesy of GENERAL MOTORS CORP.
  10. Remove the studs and the ignition coil.
    Fig 6: Removing Studs and Ignition Coil
    G01977918Courtesy 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: Removing MAP Sensor Seal
    G01977919Courtesy 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: Removing Fuel Pipe Components & Seals
    G01977920Courtesy 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: Removing EVAP Canister Purge Solenoid Valve & Wiring Harness Bracket
    G01977921Courtesy 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: Removing Upper Intake Manifold
    G01977922Courtesy 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: Removing Lower Intake Manifold Bores Injectors
    G01977923Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals