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3 fuel lines WTH?

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Old 05-05-2013, 09:06 PM
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Default 3 fuel lines WTH?

I'm getting to the fuel side of my swap and I have 3 fuel lines coming out of the engine what is what? I've read about return lines but only one. I have 3 lines that run to intake from rear of jeep. This is a 5.3 supposed to be from 04 suburban but wiring harness has blue and red connectors and get.
Old 05-05-2013, 09:11 PM
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One is probably the evap line from the gas tank to the intake.
Old 05-05-2013, 09:14 PM
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Sorry something cut me off. im sure I'll have more questions as I go, thanks for the help. FYI one line is 3/8 has filter on it, two are 5/16
Old 05-05-2013, 09:16 PM
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Oh OK. Makes sense. Should I tee it in with return line? Or do away with it?
Old 05-05-2013, 09:18 PM
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Roll Tide by the way
Old 05-05-2013, 09:44 PM
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EVAP can be removed if you don't have to pass emissions testing. If you keep it, it does not connect to the other lines in any way. It vents the fuel tank vapors to the intake manifold.
Old 05-05-2013, 10:03 PM
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Cool thanks. I guess next question is which one is evap? The 5/16 line coming out of top of intake or the other?
Old 05-05-2013, 11:37 PM
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The one coming out of the top of the intake that's hooked up to the purge solenoid is the one to remove. The return line will be hooked to the fuel rail under the feed line.
Old 05-06-2013, 03:54 AM
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Thanks. Very helpful very quick



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