2018 ford explorer fuel pump replacement2/20/2024 The fuel pump operation is the same as for applications using the stand-alone FPDM. Note: For the LS, the FPDM functions are incorporated in the rear electronic module (REM). Refer to the Owner's Literature for the location of the IFS. Once the switch is open, it must be manually reset before restarting the vehicle. When a sharp impact occurs, the ball breaks loose from the magnet, rolls up a conical ramp and strikes a target plate which opens the electrical contacts of the switch and shuts off the electric fuel pump. It consists of a steel ball held in place by a magnet. The purpose of the IFS switch is to shutoff the fuel pump if a collision occurs. Did you test or just replace it ? There is a fuel pump driver module that controls the pump, an the PCM tells how much fuel to pump by a sensor on the fuel rail ! the fuel rail pressure sensor ! Your vehicle has Ford Electronic Returnless Fuel System ! watch this guy on testing Ford Electronic Returnless Fuel System Diagnosis Part 1 Ford Electronic Returnless Fuel System Diagnosis Part 2ĭid you check Inertia Fuel Shutoff (IFS) Switch The IFS switch is used in conjunction with the electric fuel pump.
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