Removal (5.0/5.8/7.5L)
- Remove fuel tank cap. Locate and disconnect electrical lead at fuel pump relay, inertia switch, or in-line high pressure fuel pump.
- Crank engine for 10 seconds. If engine starts, allow to idle until engine stalls. Crank engine an additional 5 seconds after engine stalls. Turn ignition off. Reconnect electrical lead that was disconnected in step 1). Disconnect negative battery cable.
- Remove vacuum hose from fuel pressure regulator. Remove Allen head screws from fuel pressure regulator housing. Remove fuel pressure regulator, gasket, and "O" ring.