GM Service Manual Online
For 1990-2009 cars only

Object Number: 1644925  Size: MF

Callout

Component Name

Preliminary Procedures

  1. Remove the engine sight shield. Refer to Intake Manifold Sight Shield Replacement.
  2. Remove the hood assembly. Refer to Hood Replacement.
  3. Remove the front and rear sections of the supercharger inlet duct assembly. Refer to Supercharger Inlet Duct Assembly Replacement.
  4. Remove the rear inlet duct seal. Refer to Intake Air Duct Seal Replacement.
  5. Disconnect the electrical connector from the throttle body assembly.

1

Throttle Body Assembly Bolt (Qty: 4)

Caution: Refer to Fastener Caution in the Preface section.

Tighten
10 N·m (89 lb in)

2

Throttle Body Assembly

Caution: Do not use a cleaner which contains methyl ethyl ketone. This extremely strong solvent may damage components and is not necessary for this type of cleaning.

Use a carburetor cleaner in order to remove deposits.

Refer to the instructions provided with the cleaner.

Tip
It is not necessary to remove the supercharger to remove and/or replace the throttle body assembly.

3

Throttle Body Gasket

Procedure

  1. Always install a NEW throttle body gasket.
  2. Perform the Throttle Body Learn procedure. Refer to Throttle Learn.