Ford XL2Z-9424-BA Manifold Assembly - Inlet

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Install the manifold to the cylinder heads, making sure the bolt holes are aligned. Install the bolts and tighten them finger-tight, ensuring not to move the manifold back and forth to avoid displacing the O-ring seals.

Remove the upper intake manifold, then disconnect the EFI wiring, labeling all connectors. Warning: Do not disconnect any fuel system components until the fuel system pressure is relieved.

Disconnect various components such as the mass air flow sensor, throttle position sensor, vacuum hoses, accelerator and cruise control cables, exhaust gas recirculation (EGA) valve, spark plug wires, wiring harness, ignition coil pack, and powertrain control module (PCM) harness. Remove the six bolts securing the intake manifold and lift it off the cylinder heads.

Remove the intake manifold nuts and bolts and lift the manifold off. If it's stuck, tap it lightly with a soft-face hammer to break the gasket seal. If necessary, pry the manifold off, but pry between a casting protrusion and the engine - don't pry against gasket surfaces.