GM Service Manual Online
For 1990-2009 cars only

Object Number: 1644925  Size: MF

Callout

Component Name

Preliminary Procedures

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

  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 Bolts (Qty: 4)

Notice: Refer to Fastener Notice in the Preface section.

Tighten
10 N·m (89 lb in)

2

Throttle Body Assembly

Notice: 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.

3

Throttle Body Gasket

Tip
Always install a NEW throttle body gasket.