Need help 7.3 idi

[bbjordan]

Check/replace the little hose between the lift pump and the steel line. They are a notorious for causing problems.

Cheap and easy fix too.

 

[Fordfan90]

Check/replace the little hose between the lift pump and the steel line. They are a notorious for causing problems.

Cheap and easy fix too.

Yep just put a new one in there is looked kinda bad so I went ahead with that. I got some bypass lines and hooked them up and long behold that FSV must have been sucking air. It's runs like new so I ordered one from Ford for 500 should have it in the morning.

 

[mikeboggess]

I have a '91 F250,7.3 that had the same problem. in addition to air in the lines there is a wiring harness that lays on the right front fender, the plastic plugs had completely disintegrated on the bottom side exposing the electrical connections, had that repaired and have not had a problem since.