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Working on the fuel system and cracked/broke the rigid fuel line (#1 below) at the fuel filter on the tank side (quick connect #11 below). It broke right at the quick connect. Connector appears to be undamaged. Is this repairable by cutting back and reattaching the quick connect fitting to the line or would I need a new fuel line assembly (GM 10251324). The connection looks like the line was fitted over the barbed part of the quick connect then shrunk down. The diagram below appears to show the connector and line being 2 different parts. Any help would be greatly appreciated.
Are you sure that's a 95 model year diagram? Looks more like a 1993 with the pulsation damper in the fuel inlet line for the rails. Also only three lines on the sending unit. My 94 had four connections including one for the pressure vacuum relief valve (39). Your diagram shows a separate connection on the tank for the pressure vacuum relief.
I think that the second part (2) shown at the ends of line (1) is the plastic pinch clip that you pinch to release the connection. Shoebox shows that type connector on the right side of steps 5 and 6 in this diagram:
In any case, the 4th Gen nylon fuel lines appear to have been discontinued, based on people I've seen searching for the front line bundle. Did a search on part # and the only source I checked shows discontinued.
Dorman sells replacement connectors and replacement “kits”.
Just jumping in with limited knowledge, because if you haven’t been on this site lately, there are not many active members left, and it can take a long time (if at all) to get help.
Fred,
I am not sure on the year of the diagram. I found it and just wanted to use it to help explain what I had and where it broke. The plastic pinch clip is what I was calling "quick connect". This is where the nylon line broke off from the pinch clip.
Is there a way to reattach it to the line? I cut the remaining line off of the pinch clip and exposed the barbed area. Not sure how to push the nylon line back over the pinch clip barb. Heat? Push hard? Special tool?
I found, I think, an OEM replacement here: GM 10251324 Hose, genuine OEM part I won't know for sure until I call to confirm they actually have it in stock.
Your last paragraph is a bit unsettling. Are you saying the amount of people most of us are used to seeing and getting advice from are no longer on here or seldom logon? I am not tech savvy enough to know how to see who is online but I sure hope we don't lose this forum. I try to contribute as much as I can but I am a novice compared to folks like you and Shoebox.
Again, I appreciate your input and advice, you and the others have pulled my a$$ out of the fire more than once.
There are only 1, 2, maybe 3 posts per day. Some days none. I think I have to delete almost as many spam posts per day. Almost everyone is asking about LT1’s.
Rob/Shoebox seems to post every couple weeks or so. There's a Super Moderator drops in every few weeks or so. Then maybe a 1/2-dozen regulars that help out from time-to-time. The Administrator Chris and Jason appointed only shows up every 2 or 3 years, so I volunteered a few years ago just so there was someone watching the store. I'm “aging out”….. sold my Formula 2 years ago. New owner is in NJ, so I have visitation rights…… He's happily running 9-second 1/4’s, and pushing for more. I didn’t think it was a good idea for an octogenarian to be crawling under the car, let alone making 9-second passes.
Most of the posts are from guys/gals who have bought a clapped out 4th Gen and want to get it running, or upgrade the performance…. get a response, never come back.
Looks like all my attempts to find this part and/or repair my original fuel line have failed. You mentioned Dorman having repair kits and you used SS lines. Do you have any recommendations or source of supply? I have never worked with nylon fuel lines or the connectors so this is all new to me. Is the fuel sender connector different from the one going into the fuel filter, also, is the fuel line 5/16? My grandkids are here for a few weeks so I am working on this whenever I get a chance but would really like to get this up and running again. As always, I appreciate your help.
I can’t remember the fuel connections on the sending unit, but I think they are the metal collar quick connects. The fuel filter connection is the plastic collar clip.
The white plastic tips are just protective pieces, not part of the connections.
You can buy -AN connectors in both types and fabricate the lines from braided S/S. The supply line is 3/8”, return is 5/16”. I was helping someone recently and searched and found an online source of complete kit for the front (engine) fuel line replacements - the 4 required connectors and ready-made 6-ft braided S/S lines. I'll see if I can find the link. They may also have the rears.
Thank you so much for the info! I think I'll go this route, seems to be better than the nylon. Is there a specific fuel line to use due to being fuel injected (higher pressure than carb)?
Pressures used for fuel injection systems (other than direct injection) are not an issue. You typically will not see over 100 PSI, even with the pump flow blocked. My system ran at 58 PSI, like the LS1 system, rather than 43.5 like the LT1. I also used PTFE SS designed for the nitrous system, and that required a design level of 1,600 PSI.
The fuel gauge is electronic, with a floating needle on shutoff. Doesn’t drop to “0”. Pressure never reached 80 PSI….
I am glad I asked. I would've gotten something off the shelf. My running pressure is close to stock, 46-48 psi. I am not running anything crazy like you but I want to do it right, no shortcuts.
Once again, you have come through and saved the day like so many times before. I know the LT1 world is all but dead but I take pride in what I have built over the years and will continue to do so. I now find myself teaching my grandkids which is pretty cool.
