GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Pickup - 4WD 🢒 Engine 🢒 Engine Electrical 🢒 Secondary Air Injection Check Valve and Check Valve Pipe Replacement

Removal Procedure

    Object Number: 18365 Size: SH
  1. Remove the bolt for the AIR crossover Bbank 1 bracket.

    2. Object Number: 18366 Size: SH
  2. Disconnect the AIR crossover Bbank 1 hose.

    3. Object Number: 18349 Size: SH
  3. Disconnect the AIR pump output hose at the AIR valve.

    4. Object Number: 18368 Size: SH
  4. Disconnect the bank 2 AIR pipe at the AIR valve.

    5. Object Number: 18362 Size: SH
  5. Remove the AIR valve bracket bolt.
  6. Remove the valve from the bracket.

Installation Procedure

    Object Number: 18362 Size: SH
  1. Install the AIR valve to the bracket.
  2. Install the AIR valve bracket bolt.

    3. Object Number: 18368 Size: SH
  3. Connect the bank 2 AIR pipe.

    4. Object Number: 18349 Size: SH
  4. Connect the AIR pump output hose to the AIR valve.

    5. Object Number: 18366 Size: SH
  5. Connect the AIR crossover bank 1 hose.

    6. Object Number: 18365 Size: SH
  6. Install the bolt for the AIR crossover bank 1 hose bracket.