air intrusion or bad ip?

[turbobrick563]

Ok guys 94 f350 7.3 non turbo. 136k Has new Motorcraft glow plugs. New fuel filter. New return lines and o rings. Had air in the fuel but replaced the line and most of the problems went away. Still having some issues tho. Not sure what it is so thought I'd ask. It used to start up very easy like it should. But since we fixed the fuel line it takes a little bit longer to start. Smokes very very little white on start up but doesn't smoke when driven. When it's cold and on high idle it's gets really lopey. When it warms up and kicks down it idles fine. Starts back up fine when warm as well. There is only about a foot of stock fuel line left from the tank to where we ran new. Do these problems sound like we could be getting a small amount of air in the fuel? It's still got the stock ip and 7 stock injectors.. could the ip be going bad? just looking for some info on what could be wrong with the truck.

 

[83ford]

Does it do anything while your driving.


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[turbobrick563]

Does it do anything while your driving.


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before we replaced the bad line it would lose power at random and then it would have a burst of power. but now i think its fine when driven. just the somewhat hard start and pretty lopey

 

[83ford]

Ok cause I know when I had air in the lines it would be normal then it'd throw ya back in the seat.eight now my ip is goin bad to we think an it'll lope then sound really bad but once it guns for 2-3 mins it's fine.i haven't drove it in couple days but I know I could drop a gear goin up hill an just barley be on it and it'd take off.


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[icanfixall]

Your pump and injectors are nearly worn out with 130,000 plus miles on them. You might replace all the injectors with new delphi BB codes and not the turbo G codes. Then see how it runs. Also the feed line from the filter to the injection pump has a seal in the brass caps. They harden and suck air long before they leak diesel. Both typ4 or Agnem sell these too. Might contact them or buy these from any good injection pump repair shop or graingers has them.