GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 887927  Size: SH
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  3. Disconnect the electrical connector from the throttle body assembly.

  4. Object Number: 927998  Size: SH
  5. Remove the throttle body assemble mounting bolts.
  6. Remove the throttle body and throttle body gasket from the water housing.
  7. Discard the throttle body gasket.

Installation Procedure

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.

Important: Do not reuse the old throttle body gasket.


    Object Number: 927998  Size: SH
  1. Install the NEW gasket to the throttle body assembly.
  2. Install the throttle body assembly to the water housing.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the throttle body assembly mounting bolts.
  5. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


    Object Number: 887927  Size: SH
  6. Connect the electrical connector to the throttle body assembly.
  7. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  8. Install the fuel injection sight shield. Refer to Fuel Injector Sight Shield Replacement .