Hey Guys,
I have searched and cant seem to find the answers im looking for.
I have a 96 PSD straight pipe exhaust, edge evolution, cold air intake, shimmed FPR, and thats about it.

My problem,
I have lost a lot of power (enough that I had to return the computer to stock as it would fall on its face with the programmer in the lowest setting) Had a friend tell me that the HPOP might be going out. I puled the HPOP out and checked it out. the IPR had two out of three o-rings cracked. I replaced them and put the HPOP back in. I removed the fuel bowl to get to the HPOP. while I had the fuel bowl out I checked the FPR and cleaned the FPR screen. I put everything back together and tried to start it with no success. I am thinking I have air in the fuel system but not sure. I checked the DTC's and have no codes at all.

If I do have air in the system how would the best way to bleed it out be?
What else should I check?

I am still learning about Diesel engines so any help is very appreciated.

 

Did you refill the HPOP with oil when you replaced it? If not it will take a ot of cranking to refill it. It is best to fill it before crankng. Any time the high pressure oil system is opened up, it will take several 30 second cranking intervals with cool down stops for the starter,to get the engine to fire, and once it is running , up to 50 miles of driving to get all the air out of the system.

 

Just keep cranking.

How did you test the hpop ?

 

In case you don't know about this:

https://www.ford-trucks.com/forums/1...rogrammer.html

 

I did refill the hpop before trying to start it for the first time. I will keep a good charge on the batteries and keep cranking. I will post results in a couple of days. @ old bird 1965, thanks for the link it was very informative. I was actually already thinking about ditching the edge and buying an SCT live wire ts

 

Any thoughts on the SCT live wire? Is anyone running one? Again thanks for all the help guys. You have never let me down.

 

Most of us run a custom tuned ts style chip.

 

I ran a super chip for a while and it worked just OK. Don't know what a live wire is, must be their newer version. Gabe has it right, get a TS chip, much better.

 

ok, tuners are the least of my worries right now. since I removed the fuel bowl and drained it am I going to have to bleed the fuel system also or do I just keep cranking on that one too? If I do have to bleed it what is the best way?

 

Just pour some fuel in the bowl and fill it back up.

 

Fuel bowl should fill its self.

Your issue could be a failing fuel pump. And it couldn't keep up in a hot tune

 

I filled the fuel bowl. Fuel pump is new. Sounds like I'm on the right track. Thanks guys.

 

ok i've been cranking a lot and still not even getting a sputter. could there be something i am still missing? I am about ready to haul it into a shop but dont want to pay some one to fix my truck. the more I fix on it the more I learn about how everything works and the more money I save. Any more Ideas anyone?

 

Check out Nate's No-Start Flow-Chart. its about the best compilation of everything that could cause a no-start that I've seen. its like a choose-your own adventure to help you pinpoint your cause. it even has links to relevant links and things for more info.

it really is quite impressive - and hopefully it helps you out!

https://www.ford-trucks.com/forums/1...flowchart.html

 

That flow chart is awesome!! I am going to print it and do some more troubleshooting. Thank you so much! You gave me hope again.