GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2006 🢒 Impala 🢒 Engine 🢒 Engine Mechanical - 5.3L 🢒 Intake Manifold Installation

    Object Number: 1272799 Size: SH

    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 the intake manifold gaskets again. Install NEW intake manifold-to-cylinder head gaskets.

  1. Install NEW intake manifold-to-cylinder head gaskets (514).

    2. Object Number: 1411912 Size: SH
  2. Install the intake manifold (500).
  3. Apply a 5 mm (0.20 in) band of threadlock GM P/N 12345382 (Canadian P/N 10953489) to the threads of the intake manifold bolts (512). Refer to Adhesives, Fluids, Lubricants, and Sealers .

    4. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 63222 Size: SH
  4. Install the intake manifold bolts.

    5. Tighten

    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).

    Object Number: 1411905 Size: SH
  5. Install the fuel rail. Refer to Fuel Rail and Injectors Installation .

    6. Object Number: 1411911 Size: SH
  6. Lubricate the manifold absolute pressure (MAP) sensor grommet (715) with clean engine oil.
  7. Install the grommet onto the MAP sensor (714).
  8. Install the MAP sensor.

    9. Object Number: 1411900 Size: SH
  9. Install the positive crankcase ventilation (PCV) hose - dirty air (716).