Does A 2003 Cummins Have A Lift Pump?
Does A 2003 Cummins Have A Lift Pump? Does a 2003 Cummins have a lift pump? There are two fuel pumps on the 5.9 Cummins. One is a lift pump that lifts fuel from the fuel tank. The fuel is siphoned to the main 5.9 Cummins injection pump, which then sprays it into the engine.