sorry but pump shaft seal is non servicable. new pump would be in order.
if any of you guys are really good with searching there is a thread thats pretty old with a lot of info on it.

also if the truck is nose down it makes the pump higher the tne resivior and cant bleed out that way.

 

Dang not what I was hoping to hear.

 

No problem cheezit, thanks for the follow-up.

So just to update the thread to current status ....
I have a decent small rise on my property and a flat area too and I have video taped every start after an overnight sit for the last 2 weeks.

Flat or nose up I have to recrank to get the engine to run without shutting off.
Nose down I get a good start each time, every time.

Right now I have done nothing with it. I just park it nose down now until I can get a new pump in. My EV2 HPOP gauge connector that plugs into the ICP was broken from the factory and between trouble shooting that and then getting a replacement, then finding a cut in the wire at the IPR connector and repairing that, I am mentally done being under the hood for a while . In and out, in and out, in and out to the ICP area on a 2003 6.0 is taxing on the mind

So for now I've moved on to my lawn, cutting trees, and helping someone out with a roof job. Truck runs great all day for now so long as I park nose down at home.

I will update if anything else changes or when I get to replace the pump - which I hope will be soon.

 

thanks for the update

 

The final update ....

I got the cash and the time together to get the HPOP replaced. I went with the Dieselsite billet pump.

The problem was diagnosed as the oil draining out of the reservoir for the HPOP when the truck was parked nose up or flat. It first happened around June 2012 when I was at 248,000 miles. The pump got replaced March 2013 when I was at 273,000.

I was able to delay changing the pump for the 9 months and 25,000 miles by always parking nose down everywhere I went. No ill effects that I can tell.

Truck is running and starting fine now with the new pump, no matter what way I park. My new AutoEnginuity is telling me all is good and healthy.

Thanks Cheezit for the original diagnosis.

 

Great thread for us to learn from. Thanks Colm (and thanks Moe).

Reps to you guys when I can!

 

Thanks Mark,

It definitely was a bit of an unusual one.

For anyone who comes across this thread later with the same problem, I did a lot of reading before I went with the billet pump. My plan is to keep the truck for a number of years and maybe 200K more miles. What I was finding is that the later model oem pumps are more consistent than the ones for the earlier model trucks, so I didn't want to have to dig into the engine again for a replacement pump that didn't hold up longterm.

 

Did you get the stock replacement or the high output?

 

I went with stock replacement.

When my injectors go I will stay with stock size. Craziest thing I might do is get a powermax turbo and tunes eventually. Based on that I was told the larger pump would be ridiculous for my needs.

 

hey colm thanks for beliving. good to hear all is well

 

Thank you guys, I just found this thread I have been fighting this same problem for about 7 months. Time to learn how to change a HPOP... also had hoped that I had not done any damage by running it this way,