GM Service Manual Online
For 1990-2009 cars only

Intake Manifold Replacement - Left Side LMM

Removal Procedure


    Object Number: 1731297  Size: SH
  1. Remove the center intake manifold. Refer to Center Intake Manifold Replacement.
  2. Remove the auxiliary generator, if equipped. Refer to Auxiliary Generator Replacement.
  3. Remove the left fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement - Bank 2.
  4. Remove the injection pump. Refer to Fuel Injection Pump Replacement.
  5. Remove the intake manifold bolts/nuts.
  6. Note: 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. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 654530  Size: SH
  6. Tighten the intake manifold bolts/nuts in the sequence shown to 25 N·m (18 lb ft).
  7. Install the fuel injector pump. Refer to Fuel Injection Pump Replacement.
  8. Install the left fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement - Bank 2.
  9. Install the auxiliary generator, if equipped. Refer to Auxiliary Generator Replacement.
  10. Install the center intake manifold. Refer to Center Intake Manifold Replacement.