How do you prime dodge Cummins fuel system?

Answer 1

On the left side of the motor there is your fuel pump on the side of it you will find a primer lever pump it up and down until it starts to get tight to prime the fuel system, you need to remove the fuel filter. make sure it is clean then fill the filter with clean diesel,and reinstall filter. this should be all you need to prime the system. you did not say what cummins engine you have,or whether it is a commercial or small truck engine. sometimes if there is air in the system after priming the filter, you may need to bleed the system to do this you need a proper sized wrench to crack open the fuel line for the #1 injector. after cracking this open just enuff for it to leak diesel, turn engine over to start engine. if air is in the system, the engine will run ruff and under powered. once engine is running, watch for diesel to squirt out of opened line,and listen for engine to start to run more smooth once engine reaches this point,retighten fuel line so it no longer leaks. the engine will then purge any orher air in the system and will run smooth and properly. if after you get it running right, annd shut engine down,the engine needs this procedure done again, then you need to look for a hole or leak in the fuel lines. usually the first place to look is where fuel filter is seated on filter mount. often the rubber gasket on filter needs replacement