Help: Need Help , ASAP, Rail pressure problem

TrentNell

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Jul 7, 2008
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i know that:D i was just wondering if they were balanced injectors. Do you have a spare set to try in case?

Nah , just the tips were done ,i can get a few injectors if need be , at this point i can swap out boddies in one night , just need to verify so i dont waste a full night and have it not fix it . And as far as Henry's idea of the rail pressure sensor being bad ,no i dont think so , boost only hits 30 psi so its def short fuel , still hauls ass though :D I bet it would go mid 11's even broken with no fuel :rofl:
 

paint94979

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Sep 18, 2006
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Nah , just the tips were done ,i can get a few injectors if need be , at this point i can swap out boddies in one night , just need to verify so i dont waste a full night and have it not fix it . And as far as Henry's idea of the rail pressure sensor being bad ,no i dont think so , boost only hits 30 psi so its def short fuel , still hauls ass though :D I bet it would go mid 11's even broken with no fuel :rofl:

trent i bet it would go faster than mid 11's right now:D 5500lbs add that extra 6,000psi and you're flirting going REALLY FAST:D
 

TrentNell

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Jul 7, 2008
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Well , snuck out there long enough to work on it a bit , pulled the return lines to each head 1 at a time , at idle they both just barely trickled out fuel , maxed out rail pressure and they seem to flow about the same . I re-checked the oil , it appears my driving today finally made it show a rise in oil think it is almost up to the ball and cant imagine i filled it that high, I only put in 11.5-12 quarts on initial fill , the oil is dark enough now that its easier to see , and oil pressure at idel seems to be low compared to what it should be when semi cold ( 40 psi ) , pulled the passenger side upper valve cover off and ran the truck with it off and maxed out rail pressure , it isnt leaking internal on that side ,so I will be tearing down the drivers side now to do the same, if i dont find anything there then :eek: might even pull the injectors to have them tested if i dont see anything , not sure what else to do ,everything seems to check out other than questioning the oil level and chasing a possible leak ?
 
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MWDHAND

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May 10, 2008
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I hope you get this figured Trent!!! Might have to try and stop in on my way to Moab (annual mountain biking trip) the first week of April to see this monster!! Good Luck I am rooting for ya on this one!!!
 

TheBac

Why do I keep doing this?
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Apr 19, 2008
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May as well pull the injectors and have them fully tested, Trent.

How long til Phoenix?
 

TrentNell

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May as well pull the injectors and have them fully tested, Trent.

How long til Phoenix?

I leave for pheonix next thurday or friday , I dont feel it is worth it Tom , unless i cant find any leaks , I just flat out dont have the time unless its absolutly nec .
 

LBZ

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Jul 2, 2007
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Someone please send this guy a set of 100 overs pronto!!!!:d
 

LBZ

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I'm sure your good for it.:D

Maybe run down to your local oil sample place and get a sample done. It will tell you if you have fuel in the oil. Some of the Flying J's have the self serve machines at them you can use.
 

TrentNell

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I'm sure your good for it.:D

Maybe run down to your local oil sample place and get a sample done. It will tell you if you have fuel in the oil. Some of the Flying J's have the self serve machines at them you can use.

I am not good for that much $$ , a set of balance and matched 100% over's using all new stuff is more than i have into my whole motor ;) , i was shocked when i heard the cost :eek:
 
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McRat

Diesel Hotrodder
Aug 2, 2006
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Not that you are retarded as I am, but I had fed the return from CP3 #1 into the inlet of CP3 #2 and had similiar results. Check that.

Put the return lines from each CP3 into identical containers and start it up. They should return close to the same amount of fuel at idle.

Obviously your tank is full, and it's not starving or foaming during acceleration, right?

If it runs sweet up to WOT, I'm not thinking injector issues.

Make sure you have the right CP3 controller. There are different units for different years.
 

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
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If it runs sweet up to WOT, I'm not thinking injector issues.

It could be a boost leak. maybe a waste gate is stuck open...

Crazy things can happen with those thisngs, my buddy blew up his civic just over a year ago because of a spring. Supposed to be a 10lbs spring, but tested it and it didn't open till about a 100lbs:eek:


Just another suggestion
 
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paint94979

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Sep 18, 2006
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It could be a boost leak. maybe a waste gate is stuck open...

Crazy things can happen with those thisngs, my buddy blew up his civic just over a year ago because of a spring. Supposed to be a 10lbs spring, but tested it and it didn't open till about a 100lbs:eek:


Just another suggestion

I don't see a correlation between a boost leak and a loss of 6,000psi ? I have had several boost leaks and they NEVER effected rail psi.
 

TrentNell

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Jul 7, 2008
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Not that you are retarded as I am, but I had fed the return from CP3 #1 into the inlet of CP3 #2 and had similiar results. Check that.

Put the return lines from each CP3 into identical containers and start it up. They should return close to the same amount of fuel at idle.

Obviously your tank is full, and it's not starving or foaming during acceleration, right?

If it runs sweet up to WOT, I'm not thinking injector issues.

Make sure you have the right CP3 controller. There are different units for different years.

as of right now i am pretty certain it is a high pressure leak under the valve cover ,i have went over everything else pretty carefully and am 90% sure i have fuel in the oil , I am hoping to get the driverside torn down tonight and will go from there depending on the conclusion . Thanks for all the help guys :hug:
 
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SmokeShow

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Nov 30, 2006
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trent, can you not tell if fuel is in the oil with a white rag? put a couple drops on a white rag and let sit a while, if a more faint line shows around the darker center oil spot, then that is likely fuel. Surely you already knew that? How about smell? If it's actually moved the level up noticably on the dipstick, then surely you'd be able to smell it in the oil?

Hoping for the best for ya bud! :hug:
 

WolfLMM

Making Chips
Nov 21, 2006
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My bet is, he finds a leak on the drivers side. I hope it is so I can fix this thing, and whoop some butt.

Good luck

Wolf
 

TrentNell

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My bet is, he finds a leak on the drivers side. I hope it is so I can fix this thing, and whoop some butt.

Good luck

Wolf

I hope for the same , i never thought i would be wishing to find a leak so badly , I usually hope for the opposite :rofl: heading out there in a bit to tear it down and find out :thumb:
 

paint94979

Beer Nazi
Sep 18, 2006
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I hope for the same , i never thought i would be wishing to find a leak so badly , I usually hope for the opposite :rofl: heading out there in a bit to tear it down and find out :thumb:

I do admire your work ethic Trent