No fuel pressure at the rail after new fuel pressure regulator install

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Old Jul 24, 2015 | 08:27 AM
  #11  
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it is not uncommon to get a bad fpr now days. may want to take it back for another.
 
Old Jul 24, 2015 | 08:33 AM
  #12  
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i see a little one on the end and a big one around the big part

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Old Jul 24, 2015 | 09:10 AM
  #13  
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Thanks Craby, but that isn't what came out of the car. This regulator looks different, and reminds me of a thermostat.. then the original collar goes back on and it's tightened down. I'm baffled cause I KNOW I was certain to look where the o ring would go and didn't see it. Ugh I thought I had it figured out.
 
Old Jul 24, 2015 | 10:40 AM
  #14  
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pictures please. this is another style.

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Old Jul 24, 2015 | 11:27 AM
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Old Jul 24, 2015 | 11:41 AM
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ok the old style. make sure the seat area is clean and undamaged. could be bleeding back into tank if dirt or debris is there.
 
Old Jul 24, 2015 | 11:44 AM
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have you cleared the computer yet? if you have access to a scanner have it scanned for trouble code. computer may have shut down your injectors for some reason, pick up or borrow a noid light and see if the computer is telling the injectors to fire. 40 lbs should run the engine.
 
Old Jul 24, 2015 | 12:56 PM
  #18  
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Thanks again, and only by the battery disconnect regarding the computer. Yeah I wondered about the injectors too, and whether or not the VATS shuts down the injectors or spark etc. I know I have spark cause the car would run with some good starter fluid and I tested the 3x crank signal and so on. The fuel going back to the tank makes sense, I mean for sure it's not making it past the shrader valve. Any idea where this O-ring is supposed to go on the fpr?? Or?? Makes me crazy I mean look at the thing where the heck does this O-ring go. haha
 
Old Jul 24, 2015 | 02:12 PM
  #19  
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i think he was talking about the new style. i dont see a place for a different o ring. i see a rubber ring at the bottom of the spring and i assume that is the seal that allows fuel to bypass.

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Last edited by craby; Jul 24, 2015 at 02:17 PM.
Old Jul 24, 2015 | 02:20 PM
  #20  
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if the computer sees a flood issue and or a no start i believe it will shut injectors off, unhooking battery to clear computer might help. could do a reset and unhook both cables and touch together for a minute or two and hook back up. it will take some running for all systems to reset. idle and such will be messed up for a short time.
 

Last edited by craby; Jul 24, 2015 at 02:22 PM.



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