Envoy 2WD L6-4.2L (2008)
Air Injection Hose/Tube: Service and Repair
Secondary Air Injection Pump Hose Replacement
Removal Procedure
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Disconnect both the air inlet and air outlet hoses from the secondary air injection (AIR) reaction pump.
3. Remove the air inlet and air outlet pipe retaining clip from the frame rail.
4. Lower the vehicle.
Important: It is not necessary to remove the throttle body to remove the intake manifold.
5. Remove the intake manifold.
6. Remove the number 6 ignition coil.
7. Disconnect the AIR hose from the air box.