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Corvette filter/pressure regulator issue

Ray Reynolds

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Has anyone had a issue with these? I installed a Brand new AC Delco EP381 pump and one of the corvette reg/filter and im only getting 10lbs pressure to the rail!!! I can hear it bypassing and pushing fuel back into the tank. No its not in backwards...lol. Could it be bypassing and dumping to much back into the tank?
 
Is there a way you can check pressure right as it consult of the tank, it’s a good idea to rule out collapsed lines and such. It could be a bad regulator but this would be the quick way to eliminate everything else and know you have a good pump.
 
Is there a way you can check pressure right as it consult of the tank, it’s a good idea to rule out collapsed lines and such. It could be a bad regulator but this would be the quick way to eliminate everything else and know you have a good pump.
I'm gonna try that tonight.. I'll post my findings
 
Has anyone had a issue with these? I installed a Brand new AC Delco EP381 pump and one of the corvette reg/filter and im only getting 10lbs pressure to the rail!!! I can hear it bypassing and pushing fuel back into the tank. No its not in backwards...lol. Could it be bypassing and dumping to much back into the tank?


I have had the same problem and it turned out that the fuel hose partially pushed itself off of the fuel sender inside the tank.
 
Ive ran one for over a year now, and installed a few in friend's builds. No issues with them. You may have just gotten a bad one or something else is up. Check your fuel pump mounting
 
I have had the same problem and it turned out that the fuel hose partially pushed itself off of the fuel sender inside the tank.
Ya that's kinda what I'm thinking it might be. I'm gonna cut a window into the floor just above the sender so I can remove it without dropping the tank
 
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