Hi. New to this site.
Need some help with my 2012 F250 6.7 diesel. I changed both fuel filters on truck but messed up on the priming part of the job. Turned key 6 times but im guessing i did not wait long enough in between turns. It did start up and run for about 30 seconds but then quit. Since then it just turns over.

Ive tried to prime again waiting for fuel filter to shut off after each turn but has not helped. Ive read up on it and it says i may have air in the system creating a blockage but havent seen any solutions to the problem.

Has anyone heard of this type of situation and have any steps i can do to rectify it. ? Any suggestions are greatly appreciated. Thank you

 

Welcome to the site..

Fuel System Bleeding — Diesel Engine

Bleed the fuel system by cycling the ignition 3 times in the following sequence:
Turn the ignition key ON without cranking the engine.
Wait 30 seconds for the fuel conditioning module to run.
Turn the ignition key OFF.
Test the system for normal operation. If the engine will not start there may still be air in the fuel system, continue bleeding the fuel system with the following steps.

If air is still present in the fuel system, disconnect the fuel supply tube quick connect coupling from the secondary fuel filter and position aside.

Install one end of a suitable hose onto the secondary fuel filter and the other end into a suitable container.
Cycle the ignition 3 times in the following sequence until no air is present in the fuel system:
Turn the ignition key ON without cranking the engine.
Wait 30 seconds for the fuel conditioning module to run.
Turn the ignition key OFF.

Key ON Engine OFF, visually inspect for fuel leaks after completing the Fuel System Bleeding procedure. Check the system for normal operation.

 

Of course the horse is out of the stable, but anytime when changing diesel fuel filters a lot of these problems can be minimized or prevented by filling the screw on type filter or the element container with CLEAN diesel fuel before assembling. That gets rid of most of the air and the majority of the time the engine will sputter a bit, but not shut down and run enough to purge any remaining air.

 

Wow. Thank you both for the quick responses.

It turns out i did not tighten the lower filter housing to its full stop position, letting air in. I was worried about breaking the plastic housing like i did when taking it off so i was shy about putting to much into it when replacing. ( Im usually told i overtighten stuff.) go figure its the opposite this time.

I did definately learn two new things from your responses so i thank you both.

 

thank you for the information.