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Old Nov 9, 2011 | 09:23 AM
  #301  
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I assume the piston is way back in there then. Maybe it is worn out? If it has an oring or a seal, maybe that is leaking pressure?
Regarding the PCM, all I see is kind of like a blank metal piece when I look at it installed behind the emergency brake. The metal piece does wiggle a bit. Like I said before there as a piece of paper on it but it was faded and shredded. Couldn't get anything off of it.
 
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Old Nov 9, 2011 | 09:35 AM
  #302  
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Try a magnetic screwdriver and the piston should stick to it.
If it's in there you should be able to see it though.
 
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Old Nov 9, 2011 | 09:37 AM
  #303  
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Lightbulb

Originally Posted by DanS12
I assume the piston is way back in there then. Maybe it is worn out? If it has an oring or a seal, maybe that is leaking pressure?
Regarding the PCM, all I see is kind of like a blank metal piece when I look at it installed behind the emergency brake. The metal piece does wiggle a bit. Like I said before there as a piece of paper on it but it was faded and shredded. Couldn't get anything off of it.
No o-ring or seal in the piston. I havent heard anything about worn out.
Why dont try to pull out that metal piece from the PCM (with the keys in your pocket OK? maybe there is your problem.

 
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Old Nov 9, 2011 | 09:59 AM
  #304  
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I'll see if I can find the piston.
I don't know how to get the metal piece out of the PCM, is is flush, although it kind of looks like there is a metal tab inside.
 
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Old Nov 9, 2011 | 10:12 AM
  #305  
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Can you post a pic of that end of the PCM?
 
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Old Nov 9, 2011 | 10:16 AM
  #306  
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Here is a thread showing the regulator (piston - spring - cap).

Go to post #4 ...

https://www.ford-trucks.com/forums/5...mming-fpr.html
 
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Old Nov 9, 2011 | 11:32 AM
  #307  
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Question

Originally Posted by madpogue
Can you post a pic of that end of the PCM?
X2 on that.

 
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Old Nov 9, 2011 | 12:04 PM
  #308  
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Originally Posted by RÖENTGEEP
X2 on that.

BTW, doc, congratulations are in order. Your quasi-namesake was just approved for the chemical element at atomic number 111 : https://secure.wikimedia.org/wikiped...ki/Roentgenium . We tried to get them to name it RÖENTGEEPium, but for some reason, they declined....
 
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Old Nov 9, 2011 | 12:30 PM
  #309  
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Talking

Originally Posted by madpogue
BTW, doc, congratulations are in order. Your quasi-namesake was just approved for the chemical element at atomic number 111 : https://secure.wikimedia.org/wikiped...ki/Roentgenium . We tried to get them to name it RÖENTGEEPium, but for some reason, they declined....

Very good find, I didnt know, but is for me very pleassure that the name came from Wilhem Conrad Röentgen (the X ray discovery 1985), as my nickname came. Now I good like to change my nickname to RÖENTGENIUM because sounds like a Genius (ahemm) and this is another reason: Roentgenium is expected to be even more noble than GOLD.

GRACIAS AMIGO for the info.

ps do you know if you can change your nickname?

 
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Old Nov 9, 2011 | 02:03 PM
  #310  
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Okay, I pulled the extra piece out of the FPR and shimmed it with a BB. Started truck up and fuel pressure at idle was jumping around from 60 to about 100. Took truck for a spin and still get CEL when accelerating hard(2500rpms plus).
Get almost home and notice a lot of liquid coming out of my truck. DIESEL! I blew the bottom fuel line that comes out of the FPR! What a mess. I've got fuel all over hell.
Did I build too much pressure or do I have a restriction?
 
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Old Nov 9, 2011 | 08:49 PM
  #311  
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Will these work for new fuel injector lines?
12" -4an Aeroquip Straight Nitrous,Brake,Fuel Line | eBay
 
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Old Nov 10, 2011 | 08:06 AM
  #312  
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Lightbulb

Originally Posted by DanS12
Okay, I pulled the extra piece out of the FPR and shimmed it with a BB. Started truck up and fuel pressure at idle was jumping around from 60 to about 100. Took truck for a spin and still get CEL when accelerating hard(2500rpms plus).
Get almost home and notice a lot of liquid coming out of my truck. DIESEL! I blew the bottom fuel line that comes out of the FPR! What a mess. I've got fuel all over hell.
Did I build too much pressure or do I have a restriction?
Yes 100 is a lot of pressure, maximum or ideal is 75psi. Its recommended that BEFORE shimm the FPR see what pressure do you have.


 
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Old Nov 10, 2011 | 09:34 AM
  #313  
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The problem was without the BB I only had 10 psi at idle.
I can't believe it went up so much. Maybe I can find a smaller BB. Seems hokie pokie.
Hey will those EBAY lines work? The fuel line that came off my truck was an aeroquip(had a metal tag). Must have been original. It wasn't teflon lined or braided.
 
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Old Nov 19, 2011 | 06:32 PM
  #314  
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Okay, here I am again.
I replaced my fuel lines going to the head and got a new spring for the FPR. While cranking I have 50psi of fuel pressure, but I am now back to a "No Start"! Just where I started this thread weeks ago.
After putting on new fuel lines and the spring, I thought I would be okay.
Since it wouldn't start I again checked voltage going to IPR through the signal wire. It is back at 1.36 volts with Key on, engine off. I have never been able to start truck when the volts are this high. According to Ford's TSB volts should be 0-0.25. I had been getting around 0.36 and the truck would start. I am now officially out of ideas and just really tired.
 
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Old Nov 19, 2011 | 11:47 PM
  #315  
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I need some fresh ideas.
 
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