Looking for some input. I’m troubleshooting my 2015 lml, died on the side of the road low rail pressure P128e and the change fuel filter message. The system was loaded up with air so I made up an auxiliary tank to the inlet of the filter housing, primer pumps hard after 4-5 pushes. I wanted to bleed at the supply lines from the pump to the rails but I’m getting nothing. No fuel with the primer or with cranking over, wondering if it’s a pressure sensor, pressure regulator or ecm causing the issue. Even if the cp4 was fragged I’d get fuel to the rails when the lines are open to atmosphere
2015 lml crank no start low fuel pressure
- Thread starter getoan
- Start date
It sure did. Make sure you replace the rails, lines, and either replace injectors or send them off to be tested and gone through. Had a guy just stick a new cp4 on against reccomendations and it bit him in the ass, had to do it twice. Lincoln diesel sells a nicely put nicely together and well priced kit for this scenario. They are an active vendor here so give them a shout