Connecting fuel pump to fuel lines
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TECH Enthusiast
Joined: Jan 2003
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From: VA
Connecting fuel pump to fuel lines For a 2001 ls1. I have the feed line connected. I need to khow which line off the pump connects to the hardline running from the "t" infront the filter or which one connects to the hard line running to the intake. I think the soft line(from the pump)with the 90 degree bend(the other line is straight), connects to the hard line from the "t" but not 100% sure 
. Thanks for anyhelp.
. Thanks for anyhelp. 
Re: Connecting fuel pump to fuel lines trying to understand what your asking so here goes the hard line from the intake, aka evac line goes to the evac boxes which connect to the middle of the pump assembly.
the feed line should be marked "F"
the return (line from the T should be on the other side of the pump assembly)
you can pull the pump assembly out to make sure as it should be obvious which line comes from the pump and which line is the return and the middle line as the evac.
here is a pic maybe it will help as you can see the middle line comes from the boxes of the evac, and the line hard to plastic evac line goes to these evac boxes.
the feed line should be marked "F"
the return (line from the T should be on the other side of the pump assembly)
you can pull the pump assembly out to make sure as it should be obvious which line comes from the pump and which line is the return and the middle line as the evac.
here is a pic maybe it will help as you can see the middle line comes from the boxes of the evac, and the line hard to plastic evac line goes to these evac boxes.
