2003 Ford F150 Fuel Pump Driver Module Location
The fuel pump drive -- or driver -- module is usually referred to by the acronym FPDM. Aftermarket retailers sometimes call the same component a fuel solenoid driver, or FSD. By either name, the module controls the voltage delivered to a vehicle’s fuel pump. By controlling the voltage, the fuel-pump driver module maintains the optimum fuel pressure and fuel delivery to the engine throughout its full operating range.
May 11, 2012 2004 - 2008 Ford F150 - Fuel Pump Driver Module- Check yours!! - Ok, I know this is a fairly well known fact to most but to those that arent aware this is a heads up. Now Ford has built one hell of a truck with the F-150 but we all know they have their quirks and the fuel pump driver module issue is one of them. Fuel Pump; Fuel Pump Problems of Ford F-150 - part 1. Fuel pump driver module, back side of module corroded away exposing circuit board causing the fuel pump to stop running and leaving me stranded during a snow storm,seems to be a common problem on 2004-2008 Ford pickups. I consider this a poor design and should be a recall, lot of garages.
Purpose
The fuel-pump driver module controls the high-pressure fuel pumps of modern, computer-controlled, fuel-injected engines, including diesels. The module is typically installed on or very close to the fuel pump, and in the early years of the component's use, this practice led to a design fault. Manufacturers, including Ford, initially placed the module inside the vehicle immediately above the fuel pump, typically just beneath the floor pan. That practice had the module mounted under seats or covered by carpet, which led to overheating problems.
Failure
The fuel-pump driver module is the most common part to fail in computerized diesel engines. When first installed in the technologically advanced diesel engines of the mid-1990s, the modules were made from materials that were unable to handle their own high operating temperatures and the extreme vibration they were exposed to when functioning. In some model vehicles, such as General Motors vehicles made between 1995 and 2002, the failure rate has been almost total. Aftermarket units are available that use advanced electronics that create less heat, with an improved heat transfer pad to minimize retention of the heat. Pairing the fuel-pump driver module with the incorrect fuel pump will also promote failure.
Symptoms of Failure
F150 Fuel Pump Driver Module
Symptoms of a failing fuel-pump driver module all manifest in the performance of the engine. Difficulty in starting or a smoky start-up, stalling or uneven running while idling, hesitations and misses when driving, and power surges when in reverse can all -- separately or together -- be indicative of a failing module. Failure can normally be diagnosed electronically using a handheld scanner, with the model-specific code displayed that translates to the fuel-pump driver module.
Modified Engines
2003 F150 Fuel Pump Module
Vehicles with modified engines that need more fuel than is standard, such as race cars and tuned-up street cars, require modified FPDMs. Running a standard module can result in overheating -- the standard fuel pump asks too much of the module, and its electronics overheat -- so the internal limiter shuts the control process down. Although the module should resume function when it cools to a safe temperature, the sudden cessation of fuel flow to a full-revving engine can have catastrophic effects.
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