Removal (GS400)
- Remove engine cover. Remove intake air connector pipe. Remove throttle body from intake manifolds. See THROTTLE BODY . Disconnect fuel line. Disconnect EVAP vacuum switching valve connector. Remove PCV hose from upper intake manifold.
- Disconnect EVAP vacuum switching valve hose from EVAP. Remove air inlet hose from air tube. Remove No. 2 engine cover bracket from engine hanger. Remove EVAP vacuum switching valve from upper intake manifold. Remove accelerator cable clamp from upper intake manifold. Remove No. 3 engine cover bracket from upper intake manifold.
- Remove bolts and left wire protector from upper intake manifold and camshaft bearing cap. Disconnect wire clamps on right engine wire from brackets on right fuel rail. Remove bolts and disconnect rear engine wire protector from rear water bypass joint and right cylinder head.
- Disconnect ACIS vacuum switching valve connector. Disconnect upper intake manifold ground strap. Remove power steering hose from upper intake manifold. Remove ACIS connector bracket from upper intake manifold. Remove accelerator cable bracket from upper intake manifold. Disconnect injector connectors. Remove bolts, nuts, upper intake manifold, lower intake manifold assembly and gaskets.
- Disconnect vacuum hose from ACIS vacuum switching valve. Disconnect vacuum hose from vacuum tank. Remove nuts, vacuum tank and ACIS vacuum switching valve assembly from lower intake manifold. Remove vacuum hose, screw and ACIS vacuum switching valve from vacuum tank.
- Remove vacuum hose, nuts, intake air control valve actuator and gasket from upper intake manifold. Separate upper and lower intake manifolds. Remove intake air control valve from upper intake manifold.