GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2008 🢒 STS 🢒 Engine 🢒 Engine Mechanical - 4.4L 🢒 Intake Air Duct Seal Replacement

Removal Procedure

    Object Number: 1640656 Size: SH
  1. Remove front section of the supercharger inlet duct. Refer to Supercharger Inlet Duct Assembly Replacement .
  2. Loosen the screw clamps on the supercharger inlet duct seals.
  3. Remove the supercharger inlet duct seals (2).

    4. Object Number: 1652890 Size: SH
  4. Remove the rear section of the supercharger inlet duct assembly. Refer to Supercharger Inlet Duct Assembly Replacement .
  5. Loosen the screw clamp on the supercharger inlet duct seal.
  6. Remove the supercharger inlet duct seal.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1652890 Size: SH
  1. Install the supercharger inlet duct seal and clamp to the throttle body.
  2. Tighten the supercharger inlet duct seal screw clamp.

    3. Tighten
    Tighten the supercharger inlet duct seal screw clamp to 2.5N·m (20 lb in).

  3. Install the rear section of the supercharger inlet duct assembly. Refer to Supercharger Inlet Duct Assembly Replacement .

    4. Object Number: 1640656 Size: SH
  4. Install the supercharger inlet duct seals and clamps (2) to the front section of the supercharger inlet duct.
  5. Tighten the screw clamps on the supercharger inlet duct seals.

    6. Tighten
    Tighten the supercharger inlet duct seal screw clamps to 2.5N·m (20 lb in).

  6. Install the front section of the supercharger inlet duct. Refer to Supercharger Inlet Duct Assembly Replacement .