Lucerne V6-3.8L (2007)
Air Injection Control Valve: Service and Repair
Secondary Air Injection Shutoff and Check Valve Replacement
Removal Procedure
1. Remove the air cleaner outlet duct.
2. Disconnect the brake booster vacuum hose from the intake manifold. Reposition the hose out of the way.
3. Disconnect the engine harness electrical connector from the secondary air injection (AIR) shutoff and check valve.
4. Raise and support the vehicle. Refer to Vehicle Lifting.
5. Remove the intake manifold cover bracket bolts (2) and bracket (1).
6. Remove the AIR shutoff and check valve pipe to exhaust manifold nuts (3).
7. Lower the vehicle.
8. Remove the AIR feed tube bracket nut (2) from the throttle body stud.
9. Disconnect the AIR feed tube quick connect fitting (3) from the AIR shutoff and check valve.