GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2000 🢒 DeVille 🢒 Engine 🢒 Engine Controls - 4.6L 🢒 Secondary Air Injection Control Pipe Replacement - Bank 2

Removal Procedure

    Object Number: 602321 Size: SH
  1. Remove the vacuum connections from the AIR check valve.
  2. Loosen and lower the pinch clamp holding the AIR exhaust hose to the front AIR check valve.

    3. Object Number: 602323 Size: SH
  3. Remove the nuts and the bolt retaining the AIR check valve bracket to the engine.
  4. Remove the nuts retaining the AIR check valve to exhaust manifold pipe to the exhaust manifold.
  5. Remove the exhaust manifold pipe from the AIR check valve.

Installation Procedure

    Object Number: 602323 Size: SH
  1. Install the exhaust manifold pipe to the front AIR check valve.

    2. Tighten
    Tighten the nuts to 9 N·m (80 lb. in.)

  2. Install the exhaust manifold pipe, gasket, and retaining nuts to the exhaust manifold.

    3. Tighten
    Tighten the nuts to 9 N·m (80 lb. in.)

  3. Install the bolt and nuts retaining the AIR check valve bracket to the engine.

    4. Tighten
    Tighten the nuts and the bolt to 9 N·m (80 lb. in.)


    Object Number: 602321 Size: SH
  4. Install the AIR exhaust hose and clamp assembly to the AIR check valve.
  5. Reconnect the AIR vacuum connections.