GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2008 🢒 LaCrosse 🢒 Engine 🢒 Engine Controls and Fuel - 3.8L 🢒 Throttle Body Assembly Replacement

Removal Procedure

    Object Number: 911046 Size: SH
  1. Partially drain the cooling system. Refer to Cooling System Draining and Filling.
  2. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.
  3. Remove the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement.
  4. Disconnect the throttle body electrical connector.
  5. Remove the throttle body nuts (4) and the bolts (5).
  6. Remove the throttle body assembly (1).

    7. Notice: Do not use solvent of any type when cleaning the gasket surfaces on the intake manifold and the throttle body assembly, as damage to the gasket surfaces and throttle body assembly may result.

    Use care in cleaning the gasket surfaces on the intake manifold and the throttle body assembly, as sharp tools may damage the gasket surfaces.

  7. Clean the throttle body gasket mating surfaces.

Installation Procedure

    Object Number: 911046 Size: SH
  1. Install the new gasket.
  2. Install the throttle body assembly (1).

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

  3. Install the throttle body bolts (5) and the nuts (4).

    4. Tighten
    Tighten the bolts and the nuts to 10 N·m (89 lb in).

  4. Connect the throttle body electrical connector.
  5. Install the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement.
  6. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.
  7. Fill the cooling system. Refer to Cooling System Draining and Filling.
  8. Refer to Control Module References for programming and setup information.