GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1858234  Size: SH
  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement.
  2. Disconnect the engine wiring harness electrical connector (2) from the electronic throttle control (1).

  3. Object Number: 1858235  Size: SH
  4. Remove the throttle body bolts (3).
  5. Remove the throttle body (2) and gasket (2). Discard the gasket.

Installation Procedure


    Object Number: 1858235  Size: SH
  1. Position a NEW throttle body gasket (1) and throttle body (2) to the upper intake manifold.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the throttle body bolts (3).
  4. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


    Object Number: 1858234  Size: SH
  5. Connect the engine wiring harness electrical connector (2) to the electronic throttle control (1).
  6. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement.
  7. Perform the throttle learn procedure. Refer to Throttle Learn.