Fuel problem 93 350

[MK3500]

We are having a problem with air in the system, strange thing tank has a lift pump in the tank could that be the air problem? Yes it is a 5.9? We can bleed out the In enjectors and it will run but than 10 min later and stops out of fuel.

 

[DVolk]

Your problem is the plastic fuel supply lines , the connector has " O" rings and your problem can be at both ends most likely at the lift pump . Go buy a fuel grade fuel ,cut off the stupid connector and slide the fuel line over should 3/8" and double clamp it then install it on your lift pump , or if you want the best fix but a fuel pump on e bay run one of those , I used good hydraulic line for fuel line it works great .

 

[MK3500]

Found the problem, pin hole letting air in but not leaking, thanks to all.