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Can someone school me on fuel line replacment

chevyy1212

chevyy1212

New member
I have a 98 GS and I have to replace the line since the fuel filter has zero chance in hell of coming off its so rusted. Pretty much Im looking for a full rundown. What fittings and what kind of flares are needed at each end (those are my 2 biggies), what tools are needed to remove it from the engine bay would be great too. Its about $120 from the dealer or $30ish if I make it myself. This is my ONLY maintence holdup.
 


Well, here's my fuel line story from hell. Not to discourage you or anything...............

Broke my feed line a few years ago back by the fuel filter , did a patch job but never really crazy about it. So I went and ordered all new hard lines from gmpartsdirect.com , needless to say 3 attempts to ship them to me later, then gave up and refunded me my money, each time it arrived damaged. Went to the dealer and tried, again, arrived damaged.

So, what are your options? Well, you can order new hard lines from Classic Tube, Preformed Tubing , good people, great customer service, and the lines will get to you in one piece. You can do what I did and find a lower mileage car out in the yard and pull that one.

Installing it into the car is a whole other ball of wax. What a huge PITA that thing was to get back into the car, and I had the engine out!! Good luck man.
 
I ended up cutting mine and replacing it with rubber hose and hose clamps. It's not what i would recommend but i'm not dumping anymore into my car than i have to.
 
dsmuts said:
I ended up cutting mine and replacing it with rubber hose and hose clamps. It's not what i would recommend but i'm not dumping anymore into my car than i have to.
Click to expand...

When you clamped it down on the exsisting line was it smooth or a little rusty. I may just do that because Im the same as you not wanting to put more money than I have to in a car Ill have for 2 more years. I just want a new fuel filter so I can get a real tune. Your ghetto fix has held up fine tho? I have a s10 filter ready for the ghetto fix just cant bring myself to do it.
 
It's held up fine so far it's been that way for about 7-8 months. I cleaned up the line the best i could with sand paper but it was still rusty. I put 2 clamps on each side of the cut just to be sure it held.
 


the thing is tho, a rubber hose is great for fixing a pin leak. you dont want a big piece going on your fuel lines. plus, you said you cant get the fuel filter off which means you are going to have to cut it off and buy a new piece that has the nut to screw in to the fuel filter in which case u might as well just flare the end of the new piece and flare the other end of the exsisting line.

and yeah trying to do the whole line is way way WAY to difficult to do without a lift. you have to bend and work it in a lot of places and unless the car is above your head it is pointless. i'll teach you how to flare lines on monday if you want and then all you have to do when you cut the lines is bring it to your autoparts store to get new lines and if they dont have the flare nuts and connectors go to ace hardware or home depot and they'll be able to get what you need.
 
Had the same issues and used one of those Dorman repair line kits. It looks like crap but works.

What I would suggest (I am going to do this in the Spring):

Buy some stainless braid PTFE line from here Frozenboost.com

Buy a Swagelok fitting and run a small piece of stainless line from the fuel filter (With an adapter to -6AN) to the Swagelock fitting.
 
Pure2sin said:
Had the same issues and used one of those Dorman repair line kits. It looks like crap but works.

What I would suggest (I am going to do this in the Spring):

Buy some stainless braid PTFE line from here Frozenboost.com

Buy a Swagelok fitting and run a small piece of stainless line from the fuel filter (With an adapter to -6AN) to the Swagelock fitting.
Click to expand...

Thats not priced to bad. Im pretty sure its the fittings that hurt the most $$$ wise tho.

I would use the Dorman kit but I have no good spot on my line for the compression fitting to seal up good enough for me to smile or else this would have been done 6 months ago.
 
I just used a pipe cutter and cut the line back from the fuel filter.

But yeah those Swagelok fittings are not cheap.
 
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