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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 23 (Engine Mechanical - 4.6L - 1 Of 4) >> On-Vehicle Repair Instructions (1 Of 2) >> Intake Manifold Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Intake Manifold
    GM1662137Courtesy of GENERAL MOTORS CORP.
  1. Install the new intake manifold seals.
  2. Connect the PCV foul air tube quick connect fitting at the intake manifold. Refer to Plastic Collar Quick Connect Fitting Service .
  3. Install the PCV foul air tube to the retaining features on the intake manifold.
  4. Lightly grease the inside edge of the rubber plenum duct on the water pump housing.
  5. Install the intake manifold.
  6. Install intake manifold bolts until snug.
    7. Fig 2: View of Intake Manifold Bolt Sequence
    GM797947Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  7. Tighten the intake manifold bolts.

    Tighten:  Tighten the bolts in the sequence shown to 10 N.m (89 lb in).

    8. Fig 3: Locating Plenum Duct Clamp Screw
    GM1662138Courtesy of GENERAL MOTORS CORP.
  8. Ensure that the intake manifold is fully installed into the plenum duct on the water pump housing.
  9. Install the power steering pump. Refer to POWER STEERING PUMP REPLACEMENT .
  10. Tighten the plenum duct clamp screw (1) at the water pump housing.

    Tighten:  Tighten the screw to 2.75 N.m (24 lb in).

    11. Fig 4: View Of Fuel Rail, Bracket & Bolts
    GM1662136Courtesy of GENERAL MOTORS CORP.
  11. Lubricate the fuel injector lower O-ring seals with clean engine oil.
  12. Install the fuel rail.
  13. Install the fuel rail studs.

    Tighten:  Tighten the studs to 10 N.m (89 lb in).

  14. Install the fuel rail bracket nut at the rear left lift bracket.

    Tighten:  Tighten the nut to 10 N.m (89 lb in).

    15. Fig 5: Locating Coolant Heater Cord Tabs
    GM1662134Courtesy of GENERAL MOTORS CORP.
  15. Install the coolant heater cord tabs to the fuel rail studs, if equipped.
    16. Fig 6: Identifying Surge Tank Inlet Hose/Pipe & Clips
    GM1662133Courtesy of GENERAL MOTORS CORP.
  16. Install the engine harness retainer to the fuel rail stud.
  17. Install the surge tank inlet hose/pipe to the fuel rail studs.
  18. Install the 2 pushnuts securing the surge tank inlet hose/pipe to the fuel rail studs.
    19. Fig 7: View Of Surge Tank Inlet Hose/Pipe
    GM1662132Courtesy of GENERAL MOTORS CORP.
  19. Install the surge tank inlet hose/pipe to the engine fitting.
  20. Position the radiator surge tank inlet hose/pipe clamp at the engine.
    21. Fig 8: Identifying Surge Tank Inlet Hose/Pipe
    GM1662131Courtesy of GENERAL MOTORS CORP.
  21. Install the surge tank inlet hose/pipe to the surge tank.
  22. Position the radiator surge tank inlet hose/pipe clamp at the surge tank.
    23. Fig 9: View Of Fuel Feed & EVAP Line
    GM1662130Courtesy of GENERAL MOTORS CORP.
  23. Connect the fuel feed line (1) quick connect fitting at the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
    24. Fig 10: Identifying PCV Fresh Air Tube
    GM1661022Courtesy of GENERAL MOTORS CORP.
  24. Connect the PCV fresh air tube quick connect fitting to the camshaft cover. Refer to Plastic Collar Quick Connect Fitting Service .
    25. Fig 11: Identifying PCV Foul Air Tube Quick Connect Fitting
    GM1661024Courtesy of GENERAL MOTORS CORP.
  25. Connect the PCV foul air tube quick connect fitting to the right camshaft cover. Refer to Plastic Collar Quick Connect Fitting Service
    26. Fig 12: Locating Engine Harness Electrical Connectors
    GM1662118Courtesy of GENERAL MOTORS CORP.
  26. Connect the rear fuel injectors engine harness electrical connectors (3).
  27. Connect the rear ignition coil module engine harness electrical connector (4)
    28. Fig 13: Identifying Engine Harness Electrical Connectors
    GM1662120Courtesy of GENERAL MOTORS CORP.
  28. Connect the front fuel injectors engine harness electrical connectors (1).
  29. Connect the front ignition coil module engine harness electrical connector (3).
  30. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  31. Install the fuel injector sight shield cover. Refer to Fuel Injector Sight Shield Replacement .
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