Join Date: Jan 2008
Thanked 95 Times in 61 Posts
iTrader Score: 0 reviews
The lift pump is the technical name for what we've been calling the fuel pump. They are the same thing.
It was originally located on the engine block right next to the fuel filter, but, because of the many failures of that pump, a different type pump was retrofitted and integrated into the fuel tank module. This new pump supposedly put out a lower pressure but a higher volume. It also had a relay associated with it and the relay is controlled by the same wires that the ECM originally fed to the original fuel pump. This takes a major load off of the ECM.
It and the injection pump (VP44) are the only pumps associated with fuel.
2002 2500 4X4, 6 spd, Tow and Camper Pkgs, RV 275s, BHAF, Walbro GSL392 pump (old school), half-in lines, Gen 3 wheels and brakes, gauges, 2009 steering, Borgeson box and shaft, steering brace.