GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Corvette 🢒 Engine 🢒 Engine Cooling 🢒 Throttle Body Assembly Replacement

Removal Procedure

    Notice: Handle the electronic throttle control components carefully. Use cleanliness in order to prevent damage. Do not drop the electronic throttle control components. Do not roughly handle the electronic throttle control components. Do not immerse the electronic throttle control components in cleaning solvents of any type.

  1. An 8-digit part identification number is stamped on the throttle body casting. Refer to this number if servicing, or if a part replacement is required.

    2. Object Number: 1672559 Size: SH

    Important: Cover or plug any openings when servicing the throttle body in order to prevent possible contamination.

  2. Disconnect the intake mass air flow sensor electrical connector.

    3. Object Number: 1672572 Size: SH
  3. Remove the air cleaner assembly.

    4. Object Number: 1461904 Size: SH
  4. Disconnect the air control valve electrical connector.

    5. Object Number: 43567 Size: SH
  5. Remove the throttle body attaching bolts.

    6. Important: Do not reuse the throttle body gasket. Install a new gasket during assembly.

  6. Remove the throttle body and the gasket.
  7. Discard the throttle body gasket.

Installation Procedure

    Object Number: 43567 Size: SH
  1. Install a new throttle body gasket.
  2. Install the throttle body assembly.

    3. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Important: Always use a torque wrench in order to obtain the proper torque.

  3. Install the throttle body attaching bolts.

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


    Object Number: 1461904 Size: SH

    Important: Ensure that the air control valve electrical connector and the connector seal are properly installed and not damaged.

  4. Connect the air control valve electrical connector.

    5. Object Number: 1672572 Size: SH
  5. Install the air intake duct.

    6. Object Number: 1672559 Size: SH
  6. Connect the mass air flow sensor electrical connector.
  7. Perform the throttle learn procedure. Refer to Throttle Learn.