Big Dan Posted June 29, 2021 Share Posted June 29, 2021 Replaced some fuel lines today. Upon reconnecting everything, I have a no start condition, with no fuel at the rail. Everything stops at the fuel pressure regulator. If I remove the FPR, and prime the pump, fuel shoots everywhere. Replace the FPR (tested off of the rail and on the rail), I get nothing. Removing the hard line from the FPR results in, again, fuel spewing everywhere. Are there troubleshooting options or is a new one simply needed? If a new one is needed, what is recommended? There just seems to be junk everywhere on Ebay. Link to comment Share on other sites More sharing options...
ghetdjc320 Posted June 29, 2021 Share Posted June 29, 2021 Just a couple of thoughts: either FPR regulator is bad or your fuel pump cannot maintain enough pressure to open the regulator. Or, the fuel lines are reversed - added Link to comment Share on other sites More sharing options...
Ωhm Posted June 29, 2021 Share Posted June 29, 2021 Maybe fuel line got crossed over somehow. If engine ran before this, it should run after doing this. Link to comment Share on other sites More sharing options...
JMO413 Posted June 29, 2021 Share Posted June 29, 2021 Not sure if I am reading your post correctly but I think you have the fuel lines reversed. Pressure should come in the back of the rail and return out the regulator at the front. Link to comment Share on other sites More sharing options...
Big Dan Posted June 29, 2021 Author Share Posted June 29, 2021 Maybe fuel line got crossed over somehow. If engine ran before this, it should run after doing this. And that is what it was. I'm an idiot. Link to comment Share on other sites More sharing options...
Big Dan Posted June 29, 2021 Author Share Posted June 29, 2021 22 minutes ago, JMO413 said: Not sure if I am reading your post correctly but I think you have the fuel lines reversed. Pressure should come in the back of the rail and return out the regulator at the front. I do. I caught it just now. Thanks for the help. Embarrassment abound. Link to comment Share on other sites More sharing options...
Big Dan Posted June 29, 2021 Author Share Posted June 29, 2021 So, to clear this up for future readers - took the FPR out of my parts jeep and it still didn't work. At that point, I retraced what I did and had the "doh!" moment.Either way, all is good now. As always, thanks for the assistance. Sent from my Pixel 4 XL using Tapatalk Link to comment Share on other sites More sharing options...
JMO413 Posted June 30, 2021 Share Posted June 30, 2021 Good to hear you got it fixed. Link to comment Share on other sites More sharing options...
tugboat95 Posted July 1, 2021 Share Posted July 1, 2021 I do. I caught it just now. Thanks for the help. Embarrassment abound.You ain't the first or the last to do that. But I Bet you won't do it again.89 ComancheEliminator2wd4.0L5 speed PukeGoatFactory Original Link to comment Share on other sites More sharing options...
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