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Intake Manifold Installation

    Fig 1: Intake Manifold-To-Cylinder Head Gaskets
    GM1552471Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • The intake manifold, throttle body, fuel injection rail, and fuel injectors may be removed as an assembly. If not servicing the individual components, install the intake manifold as a complete assembly.
    • DO NOT use the intake manifold gaskets again. Install NEW intake manifold-to-cylinder head gaskets.
  1. Install NEW intake manifold-to-cylinder head gaskets (514).
    2. Fig 2: Intake Manifold Bolts & Fuel Rail Stop Brackets
    GM1876006Courtesy of GENERAL MOTORS COMPANY
  2. Install the intake manifold (500).
  3. Apply a 5 mm (0.20 in)band of threadlock to the threads of the intake manifold bolts (512). Refer to Adhesives, Fluids, Lubricants, and Sealers  for recommended threadlock.
  4. Install the intake manifold bolts (512) and fuel rail stop brackets (712).
    5. Fig 3: Intake Manifold Bolts Tightening Sequence
    GM1876009Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  5. Tighten the intake manifold bolts.
    1. Tighten the intake manifold bolts (1 - 10) a first pass in sequence to 5 N.m (44 lb in).
    2. Tighten the intake manifold bolts (1 - 10) a final pass in sequence to 10 N.m (89 lb in).
    6. Fig 4: MAP Sensor, Grommet And Bolt
    GM1876003Courtesy of GENERAL MOTORS COMPANY
  6. Lubricate the manifold absolute pressure (MAP) sensor grommet (715) with clean engine oil.
  7. Install the MAP sensor (714) and grommet (715).
  8. Install the MAP sensor bolt (713).
    9. Fig 5: Positive Crankcase Ventilation (PCV) Hose
    GM1876005Courtesy of GENERAL MOTORS COMPANY
  9. Install the positive crankcase ventilation (PCV) - dirty air hose (716).
  10. Install the PCV - fresh air hose.
    11. Fig 6: Evaporative Emission Components
    GM1876004Courtesy of GENERAL MOTORS COMPANY
  11. Install the evaporative emission (EVAP) canister purge solenoid valve (730), bracket (741), and bolt (742). Tighten the bolt to 50 N.m (37 lb ft).
  12. Install the EVAP tubes (729 and 735).
  13. Install the fuel rail. Refer to Fuel Rail and Injectors Installation .
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