Going to redue the fuel lines and install a sump in tank this weekend,Was wondering , when bleeding the injectors Do I do while the engine is running?
Thanks,

 

If the engine is running then the injectors don't need to be bled.
It's only if it won't start that you might need to bleed.

I've never had to bleed even when replacing the injectors with all the lines removed.
Just give it a lot of throttle the first time you start it after the work. It will run poorly for a few seconds but will pull right out of it.

 

I thought about it after i asked the question and figured,how else can you bleed the injectors, the motor would have to be running. It's just that my service manual was a little confusing,I'm pretty sure it's mis-prints. Thanks for the heads up,I've been very frustrated lately trying to solve my lack of adequate fuel(see bogging under load) I thought mabey bleeding would help,again now that I think about it,your right why bother,It does start and Idle very well,I'm really hoping the Hellman sump and some fresh lines will do the trick,I've got a feeling the tank filter is full of @%#$.What else could it be if all the filters are fresh and there are no pressure leaks..

 

The next place to look would be at the fuel pressure.
Cheaper than throwing parts at it and less involved than dropping the tank to clean the tank screen which could very well already be clean.

FP gauge instructions> http://www.cumminsforum.com/forum/94...-12-valve.html

 

Absolutly,checking the fuel pressure would be the place to start. I have read the procedures, and there is a fuel pressure gauge(or at least a test kit in my very near future). My frustration is because I've already done the Pre-filter,Primary filter and lift pump,I cant see any leaks,I'm not seeing fuel on the Motor or dripping onto the ground anywhere,I did have a leak after the lift pump job because I needed to remove the hard line from the top of the filter housing in order to attach to the new lift pump,one of the rubber coated sealing washers fell so I tried a copper one I had.Live and learn. since repairing the leak, I've seen no fuel anywhere externaly.
I noticed the previous owner replaced the fuel lines to the tank. He was a nice retired fellow who seemed to talk the talk,But He stated he did his shopping at advanced auto( His buddy worked there and he got discounts).
I am dubious of the quality of the Hose and of His skills(looks like the Lines are pieces patched together with connectors instead of a continous run). I put approx 4k miles on since I bought this truck, the only trouble before now was a dirty filter that caused the same type of issue,not the surgeing or bogging but stalling,It was running out of fuel when the demand was up.
The Pump and filters I just did,most certainly made an improvement and I felt so confident that I tried to take the 55Mi. treck to work with it,only made it 10 miles before this starving for fuel issue started up again. When it stalls,I just coast to the side of the road , throw er in park and after a few cranks it fires back up. I took it slow and made it back home,When near My house I got on it and sure enough I ran it out of fuel. This seems more like a volume issue than a pressure issue.
What else to do,I'm not hurting for cash(I dont like to spend if I dont need to) but I figured what could it hurt to drop the tank have a good look at things,Install the sump(it arrived today)and replace the Lines(also arrived today,some good heavy duty Diesel rated 3/8 id) and see what happens.
I'm no stranger to turning wrenches, Just a diesel newbie. You are great here at DTR. Nice to have the benifit of other owners trials and tribulations, I will keep posting results and keep asking for advice. Thanks again
Jeff

 

That could be the problem.
Majority of the time an air suction leak doesn't leak fuel.
Only way to find an air leak is to pressurize the fuel tank to no more than 5 psi then go hunting.
I use an old fuel cap with a 1/4"air port drilled and tapped into it but an blow gun wrapped in a rag will work if you have one person to pressurize and another to hunt.

 

As I suspected,When I removed the fuel tank and pulled the sending/fuel pickup unit I found the previous owner had removed the filter and in its place was a 5/16 id fuel line with a fitting pushed into the end ,also a copper sweat to thread fitting slipped ove the line (i'm guessing for weight to hold it all down).
The fitting on the end of the line was all plugged up with what looked like thin clear plastic chips,Amazing this poor baby got any fuel at all. I took a picture and will post when I find the right cable for my wifes camera.
Sump is installed and i'm on my way to grag a few good hose clamps,
and finish this job.
Will post sucess story(i hope).
Jeff