GM Service Manual Online
For 1990-2009 cars only

Intake Manifold Replacement - Left Side LMM

Removal Procedure

  1. Remove the fuel filter assembly. Refer to Fuel Filter Assembly Replacement .
  2. Remove the left fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement - Bank 2 .
  3. Remove the injection pump. Refer to Fuel Injection Pump Replacement .

  4. Object Number: 1731297  Size: SH
  5. Remove the intake manifold bolts/nuts.
  6. Important: The intake manifold uses sealer. Pry at the area by the fuel rail bolt holes in order to avoid damage to the sealing surface.

  7. Remove the intake manifold.
  8. To prevent entry of debris into the cylinder head, tape the openings.
  9. Clean the gasket surfaces.

Installation Procedure


    Object Number: 663817  Size: SH
  1. Apply a 2-3 mm (1/8 in) wide, by 0.5-1.5 mm (1/16 in) high bead of sealant to the intake manifold. Refer to Adhesives, Fluids, Lubricants, and Sealers .

  2. Object Number: 1731297  Size: SH
  3. Install the intake manifold.
  4. Install the intake manifold bolts/nuts.
  5. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 654530  Size: SH
  6. Tighten the intake manifold bolts/nuts.
  7. Tighten
    Tighten the bolts/nuts in the sequence shown to 25 N·m (18 lb ft).

  8. Install the fuel injector pump. Refer to Fuel Injection Pump Replacement .
  9. Install the left fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement - Bank 2 .
  10. Install the fuel filter assembly. Refer to Fuel Filter Assembly Replacement .