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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1565 (Engine Mechanical (Repair Instructions 3 Of 3) - 5.7L) >> Off-Vehicle Repair Instructions - Part 3 >> Intake Manifold Installation

Intake Manifold Installation

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Intake Manifold-To-Cylinder Head Gaskets
    GM1272799Courtesy of GENERAL MOTORS CORP.
    IMPORTANT:
    • 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 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 & Engine
    GM639836Courtesy of GENERAL MOTORS CORP.
  2. Install the intake manifold to the engine.
    3. Fig 3: Fuel Rail Stop Bracket
    GM1272793Courtesy of GENERAL MOTORS CORP.
  3. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the threads of the intake manifold bolts (713). Refer to Sealers, Adhesives, and Lubricants .
  4. Install the fuel rail stop bracket (712).
    5. Fig 4: Identifying Intake Manifold Bolt Tightening Sequence
    GM63222Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  5. Install the manifold bolts.

    Tighten: 

    1. Tighten intake manifold bolts a first pass in sequence to 5 N.m (44 lb in).
    2. Tighten intake manifold bolts a final pass in sequence to 10 N.m (89 lb in).

    6. Fig 5: Knock Sensor Wire Harness Connector & Fuel Rail Stop Bracket
    GM1272785Courtesy of GENERAL MOTORS CORP.
  6. Install the knock sensor wire harness connector (1) onto the fuel rail stop bracket (712).
    7. Fig 6: Fuel Rail Ground Strap & Intake Manifold
    GM1272783Courtesy of GENERAL MOTORS CORP.
  7. Note the location of the fuel rail ground strap (550) on the intake manifold.

    The fuel rail ground strap must be installed during assembly.

    8. Fig 7: Manifold Absolute Pressure (MAP) Sensor
    GM58838Courtesy of GENERAL MOTORS CORP.
  8. Install the manifold absolute pressure (MAP) sensor, if previously removed.
    9. Fig 8: PCV Dirty Air Pipe, Valley Cover & Intake Manifold
    GM1272790Courtesy of GENERAL MOTORS CORP.
  9. Install the positive crankcase ventilation (PCV) pipe - dirty air (716) to the valley cover and intake manifold.
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