Hey folks
Ill admit im struggling here, I have an 03 6.8 v10 f450 that I use as a welding rig. My issue has been that it stalls when I shift into drive or come to stop while driving. It occasionally struggles into reverse but is usually fine. I have replaced the fuel pump (x2), the fuel filter (x2) the mass airflow sensor, the IAC, pcv valve is new, the throttle body has been cleaned, and the airfilter looks fine. I used a small smoke machine and found no vacuum leaks either. Any advice before I drag her to a shop would be greatly appreciated

 

Can you keep it running by pressing on the gas pedal slightly?

Are any codes stored?

 

pull the tb off and clean it, possible carbon in the idle air passage causing the idle solenoid to stick,