GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2002 🢒 DeVille 🢒 Engine 🢒 Engine Controls - 4.6L 🢒 Secondary Air Injection Crossover Pipe/Hose Replacement

Removal Procedure

    Object Number: 707270 Size: SH
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the retaining screws from the front portion of the left front wheel well/splash shield.
  3. Lower the splash shield far enough to gain access to the secondary air injection (AIR) pump (2).
  4. Remove the retaining clamp from the pump crossover hose (1).
  5. Remove the ties retaining the AIR crossover pipe to the engine cradle.

    6. Object Number: 707261 Size: SH
  6. Loosen and lower the pinch clamp connecting the AIR crossover pipe/hose (2) to the bank 1 intermediate pipe/hose (1).
  7. Remove the AIR crossover pipe/hose.

Installation Procedure

    Object Number: 707261 Size: SH
  1. Install the crossover pipe/hose (2) to the bank 1 intermediate pipe/hose (1).
  2. Install the crossover pipe/hose to intermediate pipe/hose pinch clamp.

    3. Object Number: 707270 Size: SH
  3. Install the crossover pipe/hose (1) to the AIR pump outlet hose (3).
  4. Install the clamp connecting the crossover pipe/hose (1) to the AIR outlet hose (3).
  5. Install the tie straps to secure the crossover pipe/hose to the engine cradle.
  6. Lower the vehicle.