GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Express 🢒 Engine 🢒 Engine Controls - 4.3L 🢒 Secondary Air Injection Shutoff Valve Replacement

Removal Procedure
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    2. Object Number: 622019 Size: SH
  2. Disconnect the vacuum line (1) from the shut-off valve.
  3. Disconnect the inlet (3) and outlet (2) hoses from the shut-off valve by releasing the spring clamps.

    4. Object Number: 615726 Size: SH
  4. Remove the shut off valve (3) from the vehicle.

Installation Procedure

    Object Number: 622019 Size: SH
  1. Connect the inlet (3) and outlet (2) hoses to the shut-off valve by installing the spring clamps.

    2. Object Number: 622019 Size: SH
  2. Install the vacuum line (1) to the shut-off valve.
  3. Lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.