5 9 Cummins Fuel Pump Problems

Refer to appropriate service bulletins information for more details.

5 9 cummins fuel pump problems. Whether it s a 12v or a 24v 5 9 cummins diesel you re going to have this issue. 99 ram 2500 24v 5 9 cummins. Below are common problems and basic diagnostic tips for the dodge 5 9l engine fuel system. From 1989 until 1998 the dodge ram pickups powered by the 5 9 liter cummins 12 valve engine had a mechanical injection pump.

These mechanical pumps were later replaced by computer controlled pumps which offered more efficient fuel consumption and higher power output. Use the scan tool injector kill test function to determine if there is a problem with the cylinder or. It is then syphoned to the main injection pump which feeds the engine. Initially the injector pumps installed in the cummins engine were mechanical.

However just like the typewriter there would come a day when the older mechanical technology would be phased out. Cummins 5 9 l fuel pump diagnosis and repair options. With such an elaborate system there s more. Just comes with the territory.

Runs absolutely perfect no smoke on start or while running. But they re still the best engine ever. When the oil seal within the pump begins to leak the pump will not operate at the correct setting. Stock all original engine 178k miles.

Leaking seals can be caused by ultra low sulfur fuel or improper fuel additives not recommended by cummins. 5 9 cummins engine fuel system diagram welcome to our website we try to bring you relevant images to what you are looking for about 6 5 diesel fuel system diagram 14 pics therefore we present the picture gallery below. Cummins b series engine wikipedia. The engine actually needs two separate fuel pumps.

Some cummins lift pumps are shaft driven. Every now and then i can get it to start after 30 seconds or so. The 5 9 l cummins engine was used in full size dodge trucks starting in 1984. Ok i ve got a confusing one.

The lift pump draws the fuel straight from the fuel tank. The cylinder balance test is not supported on the cummins 5 9l engine and its use will produce incorrect results. Only mods done are a diablo power puck full exhaust fass ddrp lift pump beans sump and some gauges. But will not start on its own to save its life.