Auxiliary Air Valve (XJS): Removal
- Disconnect battery ground cable. Carefully remove radiator cap to relieve system pressure. Loosen clamps securing air hoses to auxiliary air valve, and remove hoses.
- Remove 2 screws and washers securing auxiliary air valve to coolant pipe. Remove auxiliary air valve from coolant pipe, and clean off all old gasket material. Note number of turns required to turn idle adjusting screw in completely.