With the old fuel pump driver module unplugged and the fuel line disconnected the mounting bolts can be removed. This is more to prevent any possibility of a spark from occurring than an electrical shock. The replacement of the fuel pump driver module does require the battery to be disconnected. It is also generally located in the rear of the vehicle. These are the only two components in the fuel line before the intake of the vehicle. The fuel pump driver module will be noticeably different from the fuel filter by its shape and that it will have wires running into it. On some return-less systems, fuel pressure is modulated by a variable-speed low-pressure supply pump controlled by the engine control module (. In tracing out the fuel system, it can be easily located. What is common is that there is a single fuel line running to it. The exact location of this device is different on each make and model being produced. There are fuel pump driver modules on both gasoline and diesel powered engines. When it is malfunctioning but still operating, the driver can notice the engine to hesitate and possible the fuel mileage will not be at optimum level. The fuel pump driver module controls the flow of fuel to a precise amount. Description: 100 Brand New and High Quality Item Name: Fuel Injection Control Module Fits Parts Number: 904-229,1845117C2,1845117C6,5010121R94 4C3Z12B599AARM,4C3Z12B599ABRM Be Clear Which One Fits Yours: 2004-2005 Ford Excursion 6.0L diesel 2005-2010 Ford E350 Van 6.0L diesel 2005-2010 Ford E450 Van 6. This device must be operating correctly or the engine will not idle or accelerate correctly and begin to stutter when the gas pedal is pushed down. It is the device that is at times referred to as the fuel solenoid. With a broken fuel pump driver module in your vehicle, the correct amount of fuel being delivered to the intake system, if any, will not occur.
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