Mercury F8AZ-9424-AA Inlet Manifold Assembly

Start by disconnecting the negative battery cable. Following that, unplug electrical connectors at the air bypass valve, throttle position sensor, and EGR position sensor. Detach the accelerator cable and transmission linkage from the throttle body assembly, remove the accelerator cable/Throttle Valve (TV) cable bracket from the intake manifold, and label and detach vacuum lines from the upper intake manifold vacuum tree, EGR valve, and fuel pressure regulator.

Begin by detaching the negative battery cable and disconnecting the throttle position sensor and throttle air bypass valve electrical connectors. Disconnect the accelerator cable, Throttle Valve (TV) cable (if equipped), and the PCV vent closure hose (if present). Remove the four throttle body mounting nuts, and on 5.0L engines, carefully separate the throttle body from the EGR spacer, discarding the gasket for 5.0L engines.

The remaining installation steps are the reverse of removal. Start the engine and check carefully for oil and coolant leaks at the intake manifold joints.