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Old 01-21-2013, 06:24 PM
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Need a question answered or advice on 6.0

Hello my name is Chad and I am a newbie. Sorry for long the story that is about to go down haha. So here is what has happened. My dad owns a 04 F350 4X4. It has the early 03-04 6.0. For a while now we have experienced issue with it "missing" and not firing up smoothly. After running some marvel mystery oil in the fuel and replacing the glow plugs it was working really well!

The problem starts just a few days after we got it running well. My dad goes to get fuel one morning and the truck dies a block from the station. Further inspection showed that he had got extreme contaminated fuel, like 30 gals equaled 20 gallons of water. The stations insurance paid for it to be "fixed". It was towed to the Ford dealer where they said they pulled the tank and flushed everything out. They ended up replacing number 2 and 4 injector and the FCM. My dad got the truck back and it still didnt work like it did before. I failed to mention he had bought the truck only two months before all this. My dad concluded that they must have reflashed the computer and took out a program from the previous owner that made it run better.

So now he has the truck back. He brings it to my shop to put a Edge programmer on. He tells me the thing has no power and drive like crap prior to the edge install. So we put the edge on and I take it for a drive. NO POWER at all! Just smokes and is doing 30 floored. So I decide to pull the codes with the edge. I get #4 contribution/balance code for the injector. I also get injection pressure too low. So I switch the edge back to stock and she only makes it another 1/2 mile and dies. Crank no start situation. Later after it cools down it will start and idle. I can run it with the pedal to the floor in park will only turn 1500 rpms!!

The truck gets towed back to Ford again. This time they say the fuel is contaminated again?!!! Thats hard to believe because I got fuel in my 7.3 same time he did and it runs fine. Ford calls back again. They ran a test on all of it. They say the injection pressure is too low. So we ask what pressure was the HPOP making a cranking? The mechanic says "800 psi". What?!! How is that too low? We also ask if the IPR valve was cycling properly and he said yes. He said that somehow they ran the engine and it would run on 4 cylinders but not 8. The techinician basically said that the HPOP does not have the volume to run all 8 injectors....My question is..Is this answer bull****? Or is it legit? I want to know my possibilities before I rip into this thing and replace the HPOP or other parts. My dad and I had also replaced the ICP switch when we first had problems. We have NOT replaced the IPR.

Sorry for the long story but I figured too much info is better than not enough!
Thanks in advance for the help guys :-)
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Old 02-01-2013, 07:48 PM
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ttt Anybody???
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Old 02-01-2013, 08:07 PM
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Re: Need a question answered or advice on 6.0

Are you going to fix it or is Ford? Do you have a scanner? Sounds really fishy to me. I'd like to know the icp psi ficm voltage and ipr %... Could be the ipr causing this too.

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Old 02-02-2013, 11:20 AM
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I am going to fix it. I believe they are giving us the wrong answers at Ford. I believe its time for use to wrap our minds around it and try. I want an AE program to scan it. Is there a hand hold unit that will give the parameters of the sensors you mentioned?
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Old 02-02-2013, 11:48 AM
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Re: Need a question answered or advice on 6.0

I use snap on but there are several cheaper one discussed here. I have no personal experience with them so I'll let someone else chime in our you can search for them. One is ae

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Old 02-02-2013, 02:45 PM
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I will try and search the threads. I understand the engine fairly well but as far as when I get a scanner...I may be lost. I do know its not always clear as day with a scanner. Im sure I will have to decipher through the readings..
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Old 02-02-2013, 02:53 PM
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Re: Need a question answered or advice on 6.0

Let me know if i can help i can pm you a number to call with questions.

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Old 02-02-2013, 03:03 PM
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Your symptoms do sound like a possible high pressure oil issue, and 03/04 trucks do have much more HPOP issues then later model year engines. The PCM needs at least 500 psi of ICP pressure before it will try and fire. While 800 should be enough to start I have seen some failed pumps cause some goofy readings. The other thing that might be causing low ICP pressure is another leak like a standpipe or dummy plug issue. I would start with pressurizing the high pressure oil system and checking for leaks. If none are found then suspect the HPOP.

If you had access to a scan tool I would tell you to watch ICP desired, ICP actual, and IPR% readings. ICP actual and desired should be reading the same. If you actual ICP pressure is much lower then desired, and you have a high IPR duty cycle%, then you definitely have a high pressure issue.

I'd kind of suspect it is the HPOP.... Just a best guess on my part though.
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Old 02-02-2013, 03:12 PM
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Thank you Justin! Correct me if I am wrong but I thought the stand pipe and o-ring issues were on the 05-07 6.0s and not the 04-04s?? Sounds like I need a scanner to read these values. I am looking for a decent handhold unit now. Later maybe a AE
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Old 02-02-2013, 03:22 PM
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I agree with Justin... just asking here but if you had water go through your truck wouldn't it be a good idea to replace all the injectors code or no code?
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