5 9 Cummins Fuel Pump Problems

From 1989 until 1998 the dodge ram pickups powered by the 5 9 liter cummins 12 valve engine had a mechanical injection pump.

5 9 cummins fuel pump problems. But will not start on its own to save its life. However just like the typewriter there would come a day when the older mechanical technology would be phased out. The ve and p7100 trucks were simple to work on very reliable and with a few simple tweaks to the pump could deliver a huge increase in power over stock. Cummins b series engine wikipedia.

Whether it s a 12v or a 24v 5 9 cummins diesel you re going to have this issue. The lift pump draws the fuel straight from the fuel tank. Stock all original engine 178k miles. Runs absolutely perfect no smoke on start or while running.

Cummins 5 9 l fuel pump diagnosis and repair options. Only mods done are a diablo power puck full exhaust fass ddrp lift pump beans sump and some gauges. When the oil seal within the pump begins to leak the pump will not operate at the correct setting. Use the scan tool injector kill test function to determine if there is a problem with the cylinder or.

But they re still the best engine ever. It is then syphoned to the main injection pump which feeds the engine. Refer to appropriate service bulletins information for more details. Every now and then i can get it to start after 30 seconds or so.

These mechanical pumps were later replaced by computer controlled pumps which offered more efficient fuel consumption and higher power output. With such an elaborate system there s more. Below are common problems and basic diagnostic tips for the dodge 5 9l engine fuel system. The 5 9 l cummins engine was used in full size dodge trucks starting in 1984.

Dodge mins 5 9 engine diagram further 5 9 mins wiring schematic along with dodge. Ok i ve got a confusing one. Leaking seals can be caused by ultra low sulfur fuel or improper fuel additives not recommended by cummins. Just comes with the territory.

The fuel system of a cummins 5 9 l engine is a bit more complicated than what you would expect from a diesel engine. 99 ram 2500 24v 5 9 cummins. The cylinder balance test is not supported on the cummins 5 9l engine and its use will produce incorrect results. The engine actually needs two separate fuel pumps.