2004 L59 5.3L fuel return line question
05-27-2018, 09:32 AM
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2004 L59 5.3L fuel return line question OK, so I picked up an 04 L59 for a 95 Jeep Wrangler YJ build. The Wrangler runs a 100 psi fuel pump return style system. I'v been reading about the L59 fuel rail return setup and need some clarification on how to connect up the fuel lines.
To connect up the return setup, do I just connect the factory Jeep return line to the return connector on the L59 fuel rail? I've also read about people both connecting and disconnecting the vacuum line to the fuel rail regulator. Just looking for clarification to make sure I get everything plumbed up properly.
To connect up the return setup, do I just connect the factory Jeep return line to the return connector on the L59 fuel rail? I've also read about people both connecting and disconnecting the vacuum line to the fuel rail regulator. Just looking for clarification to make sure I get everything plumbed up properly.
Last edited by forcefeedws6; 06-07-2018 at 09:24 PM.
06-07-2018, 09:26 PM
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I was originally looking to run a corvette style inline filter/regulator, but I think this L59 has the regulator and return line built into the fuel rail.
Anyone have any insight into this L59 fuel rail connection?
Anyone have any insight into this L59 fuel rail connection?
06-08-2018, 06:40 PM
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Um,, just a note,, the stock YJ fuel system runs at about 48PSI max,, while the pump can do 100,, it doesn't last too long..
They are very inexpensive ,, if your running the stock YJ fuel tank if you have the pump out for some reason, cut the end
off the in tank end of the return pipe and shorten the fuel pump pipe as well (About 1" shorter) the YJ tanks shrink with age
and exposure to Alcohol and can block the end of the return driving your pressure to pump max .. < This is how I found out they don't like running full pressure..
They are very inexpensive ,, if your running the stock YJ fuel tank if you have the pump out for some reason, cut the end
off the in tank end of the return pipe and shorten the fuel pump pipe as well (About 1" shorter) the YJ tanks shrink with age
and exposure to Alcohol and can block the end of the return driving your pressure to pump max .. < This is how I found out they don't like running full pressure..
06-09-2018, 10:04 PM
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Um,, just a note,, the stock YJ fuel system runs at about 48PSI max,, while the pump can do 100,, it doesn't last too long..
They are very inexpensive ,, if your running the stock YJ fuel tank if you have the pump out for some reason, cut the end
off the in tank end of the return pipe and shorten the fuel pump pipe as well (About 1" shorter) the YJ tanks shrink with age
and exposure to Alcohol and can block the end of the return driving your pressure to pump max .. < This is how I found out they don't like running full pressure..
They are very inexpensive ,, if your running the stock YJ fuel tank if you have the pump out for some reason, cut the end
off the in tank end of the return pipe and shorten the fuel pump pipe as well (About 1" shorter) the YJ tanks shrink with age
and exposure to Alcohol and can block the end of the return driving your pressure to pump max .. < This is how I found out they don't like running full pressure..
