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Old 10-19-2010, 10:26 PM   #1
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Default Fuel line leak

Ok this is the second leak that I'm dealing with now. On the fuel rail closest to the firewall I have a leak where the fuel line meets the rail. It looks like there'* a nipple that the fuel line connects to and the line is held in place by a plastic clip. I pushed down on the plastic elbow at the end of the fuel line and even more fuel shot out. I assume there shouldn't be that much play in the connection. Do I have to replace just the plastic clip on the nipple or the elbow at the end of the fuel line? Thanks in advance!
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Old 10-20-2010, 08:18 AM   #2
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There should be that much play in the connection. As for the leak when you don't abuse the connection, some have had good luck replacing the o-rings inside that connector. If you push on it..expect it to leak. This is normal.
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Old 10-20-2010, 09:00 AM   #3
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Thanks For the reply Bill. The connection was leaking slightly before but now it'* much worse,I can see the gas dripping from the connection. Have you ever changed the o-rings inside the elbow before? Cause I took a peek inside and it looks pretty tight
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Old 10-20-2010, 09:40 AM   #4
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Oh..it'* tight.

I never had a leak there, so no I haven't. I did change out the fuel lines from the metal hard line over to the rail because I modded it past stock fuel rails and that was overall good. Downside is that'* about $150. The o-rings are supposed to be cheap at Napa.
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Old 10-20-2010, 10:13 AM   #5
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No I meant that inside the elbow it'* tight. I should've said that where the o-rings are the space is very small.The connection itself feels loose in comparison to the other fuel line on the other rail, I think it'* the return line. I was wondering if maybe I should change the plastic clip also?
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Old 10-20-2010, 10:54 AM   #6
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Right..I agreed inside the elbow there isn't a lot of room to work. That can happen when working on things, I call it ..."less than ideal". At these times we have to perservere and overcome the situation. Or do the manly thing and buy more tools to make the job easier.

As for the looseness vs the other..they aren't 100% comparable, one is smaller than the other and the world isn't perfect. Maybe changing the plastic clip will help. Expecially if you reefing on it broke it internally and you can't see it until you pull the fuel line off. In my experience though, they aren't overly snug and the o-rings fix up the issue.
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Old 10-20-2010, 02:24 PM   #7
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Ok Mr. Boost I'll pick up some new o-rings and find some miniature tools and a microscope and change those suckers. I assume that I have to buy special o-rings for fuel applications?
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Old 10-20-2010, 02:26 PM   #8
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I've used fuel injector o-rings before, but I have a different fuel rail than you so I don't know if it would work.
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Old 10-23-2010, 08:09 PM   #9
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Update: ok it was a combination of bad o-rings and the clip that holds the fuel line down was very loose. If you look inside of the fuel line elbow at the o-rings your first thought is, "how in the world am I getting those o-rings out? And how can I get the new ones back in?" The secret is that in front of both o-rings there is a plastic spacer that holds the o-ring in place. Start by Pulling the front spacer out then remove the o-ring (repeat for the second). Then place the new o-rings in there respective places followed by the spacers, and you're done.
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