GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 Sonoma Pickup - 2WD 🢒 Engine 🢒 Engine Controls - 2.2L (L43) 🢒 Secondary Air Injection Shutoff Valve Replacement

Removal Procedure
  1. Raise vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove vacuum line from shut-off valve.
  3. Remove crossover hose from shut-off valve.
  4. Remove shut-off valve from pump outlet hose.

Installation Procedure
  1. Install the shut-off valve to the pump outlet hose.
  2. Install crossover hose to the shut-off valve.
  3. Install vacuum line to shut-off valve.
  4. Lower vehicle.