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 Check Valve Replacement

Removal Procedure
  1. Disconnect the shut-off valve outlet hose from the check valve.
  2. Remove the check valve from the manifold pipe.

Installation Procedure
  1. Install the check valve to the manifold pipe.
  2. Reconnect the shut-off valve outlet hose to the check valve.