99-00 powerchoked
 

ok so im a cummins guy so bear with me. its a 99 or 2000 f250 with a 7.3 powerstroke. got some hpop leaks, but only 90k miles. you crank it up it runs fine take off down the road and within a mile your losing power. within 3 miles its shutting down and wont restart. has a long crank time and runs like its getting air in system or at least it runs like a cummins thats sucking air. gimme some guidance o' strokin gurus thanks ask any questions and ill do my best to answer

Any HPO leaks will cause issues. Could be a IPR, or a leaking injector o ring... Do you have access to any scanner tools?

yea heading home to check codes but i dont even know if engine light is on. ill give more info in a little while

Codes might help, but you need to have a scanner that can read the duty cycle of the HPO pump and the ICP pressures. A Buzz test would help as well.

ok so i hooked up my universal scan tool no codes. went to start and it spins over and it kinda hits on what sounds like a couple of weak cylinders but no good solid hits. i guess ill start with what i know. Check the fuel pump and see if its gettng power and pumping fuel then uh idk. i guess ill figure it out

---AutoMerged DoublePost---

ok some fuel pump is pumping and building pressure. still wont run. sprayed some ether in her and she will spin fire up and then shut back off. im reading good oil pressure on the dash gauge. also when i got the truck they guy said within a week it was using and losing about a gallon of oil. i got it and chacked and its three quarts low. i filled it up and still nothing. i kinda think its got issues with the hpop, but i dont know. is there anyway to diag that part of the system without having a super expensive scan tool.

On the top of the HPO res there is a plug, right hand side if your looking at it. Pull that plug and check to see if the HPO res is full. Should be less then 1/4" below the top. Unplug the ICP sensor in the drivers head (front port on the top of the head) and try cranking after that.

You can also try grounding out the IPR (which is below the fuel bowl mounted in the HPO pump. run one wire to ground and one to 12V and crank. It should crank and start, but run very rough. DO NOT leave it this way for more then 15-20 seconds. If that starts it then I would suspect the IPR.

But if its loosing alot of oil I would suspect injector o rings.

if i unplug the icp thats basically like putting full injection pressure on a cummins cr right?

---AutoMerged DoublePost---

if the reservoir is low what is usually the cause? and what would be signs of leaking injector orings? the guy said when he would drive it it would be hard to start nbut would run good for a bit but after a mile it would run a mile it would start to lose power and the further you drive the worse it would get. he drove three miles to my house and then within about 400 feet of my driveway it would barely move then finally shut off. when i leave wrok ima go home and try that stuff. thanks for all your help

Only thing unpluging the ICP sensor does is make the PCM go to a default value on ICP, so if the ICP sensor was bad and not reading 500psi of ICP unpluging it would let it start.

Jumping the IPR will close it completely giving you the full pressure of the HPOP.

if the res is low, it means there is a leak somewhere, be it in the IPR, injectors or HPOP... Or the LPOP is bad and not filling the res.

well i think the lpop is good because its reading good oil pressure on the gauge. just wondering if it matters which wire on the ipr should see voltage or if it matters. would a leaking injector oring cause a no start, or a slow start. just wondering bc it wont start at all. i cranked for a total of like 15 mins in a 30 min span. i shoot ether in it fires up and then shuts back off. i just figured that the oring would cause a slow to build pressure situation, but once it started that it would keep running but idk. dont mean to be annoying just fascinated by learning something new

---AutoMerged DoublePost---

ok i just checked the reservoir and there is oil to about .5 inches from the outside edge of the plug hole. i finally got my pc working and hooked it up. i unplugged the icp and there is oil in it. but it set a code for the icp open circuit. cranked, it hit and then does the same thing so i checked the injection control pressure on pc and it read between 1800 and 2200 psi not sure if thats good or not. i didnt jump the ipr because wasnt sure of wiring, which needs power and which needs ground or if it matters. it had a stored p0340 but has a nearly new grey cmp. it won reset this code after attempting to start for 30 secs 3 different times. and i want to say the ipr was saying 60 % but ill have to check tommorrow

Need to go thru and check to make sure there are no blown fuses, that the batterys are fully charged and its getting fuel. It sounds to me like the ICP is not building to 400#'s which is required before the injectors will even fire. Unplug the ICP sensor and have someone crank for you. You should hear the injectors start to fire (you can here the electric part of the injector start clicking)...

At that point you should start to see some white smoke out the tail pipe.

If you dont here the injectors firing, that tells me more then likely its something with the IDM (injector drive module)...

There is a red and a black on the IPR... black goes to ground, red goes to positive.

You will get 1800-2000 PSI with the ICP sensor unpluged when cranking. That is the default values in the PCM. Plug back in the ICP sensor and see what it says when cranking then. Also look for ICP duty cycle.

What software are you using to scan it?

If you can run a buzz test that would help as well.

i havechecked the fuses they are all good. i have a jump box and a charger hooked to it. the icp reaches 2300 with it plugged in but it bounces between 1800 and 2300. i remember seeing something with the injector duty cycle but idk know if it was icp duty cycle or ipr duty cycle. when cranking i can hear a fairly loud clicking that is rythmic so im assuming its the injectors firing. when cranking a little bit of white smoke creeps out of the pipe. im using autotap software its fairly good i cann read more with it than with the advance auto scan tool. alot more. im leaning more towards i have a leak on the pressure side but idk bc the fuel pump has plenty of pressure to the filter, but if i spray ether in it will start and stall. :argh::argh:

When cranking is the Tach moving at all? Could be as symple as a CPS right now, if your making 1800-2000psi there is no reason it should not fire.

Crank and watch the tach, it should be moving on a 2000, if not the CPS is bad.

the truck is a 99 but it raises off the stop but only like a sixteenth of an inch

I would run down to Ford and get one of the new CPS's... Much as they suck, there only $20 bucks or so. See if that gets it running.

ok so i will share my ignorance. Of course after listening and learning from the great minds on db i realized i was building good oil pressure and of course the fuel system was building pressure, and that would be great if it was only fuel....not water. made the common mistake and i trusted the gauge saying it had fuel. i went back to basics like i do on the cummins and mercedes diesels. you never know what a jackass will put in the tank. check the fuel and found it was water he got it out of a storage tank that had sat for quite some time and thought that was a good idea, but failed to mention this. he had also previously painted the cluster black to cover the water in fuel light bc it was broken, ( he didnt know how to drain the water off ). thanks for all the info i learned alot guys.:c: