GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2005 🢒 DeVille 🢒 Engine 🢒 Engine Controls - 4.6L 🢒 Air Cleaner Element Replacement

Removal Procedure

    Object Number: 622423 Size: MH
  1. Disconnect the mass air flow/intake air temperature (MAF/IAT) sensor electrical connector.
  2. Loosen the clamp connecting the intake air duct to the throttle body.
  3. Disconnect the intake air from the throttle body.
  4. Disengage the air cleaner cover retainers.
  5. Remove the air cleaner cover.

    6. Important: Inspect the air cleaner housing assembly for damage. If a problem is found, replace as necessary.

  6. Remove the air filter element.

Installation Procedure

    Object Number: 622423 Size: MH
  1. Install the new air cleaner element.
  2. Install the air cleaner housing cover.
  3. Engage the air cleaner cover retainers.

    4. 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.

  4. Install the intake air duct to the throttle body.

    5. Tighten
    Tighten the clamp assembly to 3 N·m (27 lb in).

  5. Connect the MAF/IAT sensor electrical connector.