I am new to the forum, so if this is the wrong place to post this, please let me know and I will move my post.

My 23 y/o son has a 98 Wrangler Jeep. We bought it used almost 2 years ago. Since then, he has had trouble with the brake and fuel lines. A shop told us that the entire undercarriage is rusted and all lines are corroded to a point of needing replacement. The mechanic said the jeep must have been under water for a while considering all of the rust. He suggested we scrap the jeep.

BUT. The jeep starts every time and the engine is strong. I got a service manual and was going to replace the brake and fuel lines myself.

Does anyone have any advice on whether I should scrap the jeep or rebuild it?

Also, any tips on replacing the brake lines would be very helpful.
Thanks

And did he offer to dispose of said jeep for next to nothing every thing is replaceable and not really expensive make it a project and do it right from front to back, gain knowledge and a little family togetherness. every thing I do to my jeep I get a great feeling of acomplishment doing it my self and it will bring the two of you closer together( you and the jeep)Remember all jeeps are is a project if your not doing this it will just be some thing else,TRUST ME!!

you can do it,rebuild it never scrap a jeep,unless it crushed so bad it cannot be fixed

Most used jeeps end up under water at some point anyway!

Sounds like the mechanic wanted to pick up a cheap jeep. Brake lines aren't that hard or expensive to replace. If you're in the NE, a more likely reason for the lareg amount of rust is the liquid ice melter they spray on the roads in winter. That stuff is extremely corrossive. I had a brake line blow out from rust. Fortunately, it happened at start up, so there was no fire and no careening off a cliff or into a tree.

If you DIY it, make sure you use a tubing bender to bend the lines or they'll kink. I imagine a shop would do the whole job for a few hundred bucks. From what you wrote, there's absolutely no reason to junk the rig. Just fix or replace things as they require it, and it will keep going for a long time. It might cost a few hundred bucks and some time here and there, but it will be much less than a car payment, and you'll get to know your jeep much better.

I replaced mine with a set from Classic Tubes.com, think it was around $175 for stainless steel all prebent, they are really nice and make the replacement a breeze.

Pics of rust? How bad is it?

There is NO QUESTION .... Replace and refurbish the Brake System

My son (22) drives the 1999 TJ SE and I drive the 1999 TJ Sahara.

I am fortunate to be able to share the JEEP thing with my son and hope that you will also.