They also often contain numerous other components (besides the fuel delivery module) inside the tank. Replacement is relatively simple but fitting errors are common because of the design of modern fuel tanks.įuel tanks are now generally irregular in shape to make the most of the space within the vehicle design.

Replacement pumps and swirl tanks are also available from the Lucas Electrical range. In some case the whole fuel delivery module may not need to be replaced. Motors and diaphragms are particularly prone to deterioration and age related failure.

Symptoms of a faulty fuel delivery module The most common causes of failure are contamination, overheating, general wear and tear from age. The fuel pump controller communicates with the vehicle’s ECU and operates the fuel pump to deliver fuel along fuel lines to the engine on demand.įuel levels are also communicated to the ECU as the float attached to the fuel level sensor rises and falls. The unit contains a motorised pump, pump controller and fuel level sensor. The fuel delivery module is essentially a combined in tank fuel pump and level sensor.

Symptoms of bad fuel pump module