Is the fuel pump back to the driver?
2008 Ford E250 Van 4.6L has no power back to fuel pump driver. Fuses and relays test fine. Fuel inertia switch has power, both sides with ignition on. Has new fuel pump and fuel pump driver module.
Where is the fuel pump driver module located?
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.
Can a faulty fuel pump cause engine failure?
Pairing the fuel-pump driver module with the incorrect fuel pump will also promote failure. Symptoms of a failing fuel-pump driver module all manifest in the performance of the engine.
Why do we need electronic fuel pump control?
Electronic module control has revolutionised the modern engine fuel delivery system by enabling more precise fuel control, better reliability and lower NVH levels. This additional electronic control means diagnosing fuel delivery system faults require a blended approach of both mechanical and electrical checks to ensure accurate diagnosis.
What are the symptoms of a bad 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.
How to tell if the fuel pump module is bad?
Symptoms of a Bad or Failing Fuel Pump Whining Noise From the Fuel Tank. One of the first symptoms of a problem with the fuel pump is a loud whining sound. Difficulty Starting. Another symptom commonly associated with a problematic fuel pump is difficulty starting. Engine Sputtering. Stalling at High Temperatures. Loss of Power Under Stress. Car Surging. Low Gas Mileage. Car Will Not Start.
What is the purpose of the fuel pump control module?
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.
What is a fuel pump driver?
The main role of a fuel pump driver module is to control the voltage needed to operate a vehicle’s fuel pump. By doing this, it helps maintain the right amount of fuel pressure going to the engine.