OEM 2009 Cadillac DTS Air Inject Check Valve

2009 Cadillac DTS Air Inject Check Valve Parts and Q&A

• Q: How to replace the Air Inject Check Valve on 2009 Cadillac DTS?

  A: Separating the fuel injector sight shield serves as the first step for replacement of the Secondary Air Injection Check Valve. Gratis the engine harness electrical connector from operating with the secondary air injection (AIR) check valve. The constant tension clamp should be pinched while the air pipe needs extraction from the air check valve. Start by extracting the exhaust manifold nuts from the air check valve then detach its bolts to successfully remove the air check valve. The exhaust manifold gasket of the air check valve should be discarded before cleaning all gasket sealing surfaces. The installation of a new air check valve with its gasket to exhaust manifold requires proper placement before installing the valve. Use the given air check valve to secure exhaust manifold nuts while applying torque of 9 nm (80 lb in); afterward use the check valve bolts which should reach the same 9 nm (80 lb in) torque value. Shut down and disconnect the battery and then reconnect the engine harness electrical connector to the air check valve before attaching the air pipe to it. Re-install the fuel injector sight shield as the last step.