GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 896381  Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the air inlet tube and air cleaner assembly.

  3. Object Number: 895185  Size: SH
  4. Disconnect the fuel pressure regulator hose from the throttle body and fuel rail.
  5. Disconnect the throttle position sensor (TPS) and the idle air control (IAC) electrical connectors.
  6. Disconnect the manifold absolute pressure (MAP) sensor electrical connection.

  7. Object Number: 895188  Size: SH
  8. Disconnect the throttle and cruise control cables.
  9. Remove the throttle body mounting bolts and nuts.
  10. Remove the throttle cable bracket.
  11. Important: The throttle body-to-manifold gasket is reusable if it is not damaged. Replace if damaged.

  12. Remove the throttle body.

Installation Procedure


    Object Number: 895188  Size: SH
  1. Install the throttle body gasket.
  2. Install the throttle body and throttle cable bracket.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the throttle body mounting bolts and nuts.
  5. Tighten

        • Tighten the throttle body bolts to 10 N·m (89 lb in).
        • Tighten the throttle body nuts to 10 N·m (89 lb in).

    Object Number: 895185  Size: SH
  6. Connect the throttle and cruise control cables.
  7. Connect the throttle position sensor (TPS) and the idle air control (IAC) electrical connectors.
  8. Connect the manifold absolute pressure (MAP) sensor electrical connection.
  9. Connect the fuel pressure regulator hose to the throttle body and fuel rail.

  10. Object Number: 896381  Size: SH
  11. Connect the air inlet tube and air cleaner assembly.
  12. Connect the negative battery cable.
  13. Tighten
    Tighten the battery terminal bolts to 17 N·m (13 lb ft).