Section 10-01A: Fuel Tank, Filters, Tubes and Electric Fuel Pump, Gasoline Engines
1996 F-150, F-250, F-350, F-Super Duty and Bronco with Gasoline Engines Workshop Manual
SERVICE PROCEDURES

Fuel System Pressure Relief

 

  1.  CAUTION: Fuel supply tubes on 4.9L, 5.0L, 5.8L and 7.5L engines (6007) will remain pressurized for some period of time after the engine is shut off. This pressure must be relieved before servicing the fuel system.

    Before opening the fuel system on vehicles, relieve fuel pressure as follows:

    Locate and disconnect the electrical connection to either the fuel pump relay, the inertia fuel shutoff switch or the in-line high fuel pump (9350).

  1. Crank engine for approximately ten seconds. Engine may start and run for a short time. If so, crank engine an additional five seconds after engine stalls.

  1. Connect the electrical connector that was disconnected in Step 1.

  1. NOTE: When the battery (10655) has been disconnected and reconnected, some abnormal drive symptoms may occur while the powertrain control module (PCM) (12A650) relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.

    Disconnect battery ground cable (14301).