What makes fuel pump control module go bad?
Vibration and Stress. Vibration as well as thermal stress has also been known to cause control modules to go bad. This is because they can cause tiny cracks to form in the control module’s circuit boards. However, unlike water damage, this type of damage to a control module is repairable.
What does fuel pump control module do?
The Fuel Pump Driver Module controls the voltage delivered to a vehicle’s fuel pump. By controlling the voltage, the module maintains optimal fuel pressure and fuel delivery to the engine throughout its full operating range.
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 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.
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 does the fuel pump control module do?
The fuel pump control module is responsible for supply and regulation of voltage to the fuel pump relay and the fuel pump.