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 638 (Engine Mechanical - 4.0L (Unit Repair)) >> Repair Instructions >> Intake Manifold Installation

Intake Manifold Installation

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the intake manifold, fitting the plenum duct over the intake manifold duct.
    Fig 1: Installing Intake Manifold
    G01817362Courtesy of GENERAL MOTORS CORP.
  2. Loosely install the intake manifold bolts.
    Fig 2: Installing Intake Manifold Bolts
    G01817363Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to FASTENER NOTICE in Cautions and Notices.
  3. Tighten the intake manifold bolts in sequence (1-10).

    Tighten 

    Tighten the intake manifold bolts to 10 N.m (89 in lbs).

    Fig 3: Identifying Intake Manifold Bolts Tightening Sequence
    G01817364Courtesy of GENERAL MOTORS CORP.
  4. Tighten the plenum duct clamp (1) to the intake manifold.

    Tighten 

    Tighten the plenum duct clamp to 2.75 N.m (24 in lbs).

    Fig 4: Tightening Plenum Duct Clamp
    G01817365Courtesy of GENERAL MOTORS CORP.
  5. Inspect the fuel injector O-rings. Ensure the fuel injector O-rings are not missing, mis-aligned or damaged. Replace the O-rings if necessary.
  6. Lubricate the intake manifold fuel injector bores with light mineral oil GM P/N 9981704, clean engine oil, or equivalent.
  7. Install the fuel rail fuel injectors as an assembly.
  8. Install the fuel rail studs.

    Tighten 

    Tighten the fuel rail studs to 9 N.m (80 in lbs).

    Fig 5: Installing Fuel Rail & Fuel Injectors
    G01817366Courtesy of GENERAL MOTORS CORP.
  9. Install the fuel rail bracket nut to the engine lift bracket.

    Tighten 

    Tighten the fuel rail bracket nut to 10 N.m (89 in lbs).

    Fig 6: Installing Fuel Rail Bracket
    G01817367Courtesy of GENERAL MOTORS CORP.
  10. Install the fuel injector wiring harness.
  11. Connect the fuel injector electrical connectors (1) to the fuel injectors.
    Fig 7: Installing Fuel Injector Wiring Harness
    G01817368Courtesy of GENERAL MOTORS CORP.
  12. Install the PCV dirty air tube to the PCV orifice in the right camshaft cover and to the intake manifold.
    Fig 8: Installing PCV Dirty Air Tube
    G01817369Courtesy of GENERAL MOTORS CORP.
  13. Install the PCV fresh air feed tube to the camshaft cover and the water crossover.
    Fig 9: Installing PCV Fresh Air Feed Tube
    G01817370Courtesy of GENERAL MOTORS CORP.
  14. Install the fuel pressure regulator vacuum tube to the fuel pressure regulator and the throttle body.
    Fig 10: Installing Fuel Pressure Regulator Vacuum Tube
    G01817371Courtesy of GENERAL MOTORS CORP.
  15. Install the brake booster hose to the throttle body.
    Fig 11: Installing Brake Booster Hose
    G01817372Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals