GM 12619109
Check Valve

The replacement of the Secondary Air Injection Check Valve requires starting with hood opening followed by air cleaner outlet duct removal. First disconnect the secondary air injection (AIR) pump outlet hose quick connect fitting from the air check valve after you detach the engine wiring harness electrical connector from it. Remove the air check valve studs first before you extract the air check valve installation together with its gasket that goes into disposal. Insert a new air check valve gasket between the engine and the valve before setting the air check valve in its carrying position on the engine. Place air check valve studs on their proper positions then apply torque to 25 nm (18 lb ft). Connect the engine wiring harness connector to the air check valve while installing the outlet hose quick connect fitting to the valve. After reinstalling the air cleaner outlet duct the hood should be closed.

Begin the replacement process of the Secondary Air Injection Check Valve by first opening the hood and then removing the air cleaner outlet duct. Elevate the replacement of the Secondary Air Injection Check Valve by disconnecting the air pump outlet hose quick connect fitting from the check valve followed by removing the engine wiring harness electrical connector from the check valve. Detach the air check valve studs after which you can remove the combination of air check valve and gasket while discarding the old gasket. The first step for installation involves putting a new air check valve gasket in between engine components before placing the air check valve onto its installation position on the engine. Tighten the air check valve studs to 25 n.m (18 lb ft). The engine wiring harness electrical connector needs to be reattached to the air check valve before installing the air pump outlet hose quick connect fitting to the check valve. After dismantling, return and fasten the air cleaner outlet duct before securing the hood.