GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2002 🢒 L100/L200/LW200 🢒 Engine 🢒 Engine Controls - 3.0L (L81) 🢒 Throttle Body Assembly Replacement

Tools Required

J 43914 Universal Clamp Pliers

Removal Procedure

    Object Number: 894285 Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the inlet hose assembly from the throttle body.
  3. Disconnect the throttle body electrical connection.
  4. Disconnect the hose clamps from the plenum-to-runner connector using theJ 43914 .

    5. Object Number: 896435 Size: SH
  5. Remove the intake plenum bolts.
  6. Remove the EGR passage bolt.
  7. Rotate the plenum up and remove the throttle body coolant hoses, EVAP hose, and vacuum line from the throttle body.

    8. Object Number: 894807 Size: SH
  8. Remove the throttle body nuts.
  9. Remove the throttle body.

Installation Procedure

Throttle Body Relearn Procedure

   • 
Object Number: 894807 Size: SH

Important: Upon replacement of a new throttle body, the Throttle Body Relearn procedure must be performed.

  • Turn the ignition OFF for 10 seconds.
    •    • 
  • Turn the Ignition ON with the engine OFF.
    •    • 
  • Make sure these engine operating parameters are met before proceeding:
    •    - The ECT is between 6-100°C (43-212°F).
       - The IAT is greater than 6°C (43°F).
       - The ignition voltage is above 10 volts.
       - The accelerator pedal angle is less than 14 percent.
       • 
  • Leave the ignition ON for 1 minute with the engine OFF.
    1. Install the throttle body and new gasket.

      2. Notice: Refer to Fastener Notice in the Preface section.

    2. Install the throttle body nuts.

      3. Tighten
      Tighten the throttle body nuts to 8 N·m (71 lb in).

    3. Attach the vacuum lines, the EVAP hose, and the coolant lines to the throttle body.

      4. Object Number: 896435 Size: SH
    4. Install the EGR pipe bolt.

      5. Tighten
      Tighten the EGR pipe bolt to 25 N·m (18 lb ft).

    5. Install the intake plenum bolts.

      6. Tighten
      Tighten the intake plenum bolts to 8 N·m (71 lb in).


      Object Number: 894680 Size: SH
    6. Connect the intake plenum-to-runner universal clamp pliers using the J 43914 . If the clamps are damaged, replace with service screw type clamps.
    7. Connect the throttle body electrical connector.

      8. Object Number: 894285 Size: SH
    8. Install the air cleaner inlet hose.
    9. Connect the negative battery cable.

      10. Tighten
      Tighten the battery terminal bolt to 17 N·m (13 lb ft).

    10. Verify the coolant level and add coolant if necessary.