Nylon fuel line

[TJ 2000]

the nylon fuel line on my 2000 TJ blows apart, i have made new lines 4 times even tried rubber line with clamps rated 300 psi it split, replaced fuel pump that has pressure regulator, the latest line i made last fall i was surprised when i blew off the tank yesterday. is the pressure to high? return blocked? new steel lines installed last summer, any help greatly appreciated, i am new to this forum this is my first post thanks

 

[macleanflood]

Maybe this will help...

Thread 'Rear Fuel Line: How to Make a New Plastic Nylon Line'

Aug 31, 2025

So after my track bar came up like a guillotine and severed my plastic fuel line that runs from the tank to the hard line attached to the chassis I went on quite a journey making a replacement.

Here's the parts you need:

3/8s to 5/16 barbed QD fitting:

https://www.amazon.com/gp/aw/d/B000E35WJW?tag=wranglerorg-20

5/16 barbed QD fitting:

https://www.amazon.com/Dorman-800-080-5-Fuel-Line-Connector/dp/B00A19LHXE?tag=wranglerorg-20

5/16" nylon fuel line:

https://www.amazon.com/your-orders/pop?tag=wranglerorg-20

I haven't ID a good sleeve material...OEM has a foam line...

• macleanflood
• Replies: 27
• Forum: TJ Resources

• 

-Mac

 

[mrblaine]

the nylon fuel line on my 2000 TJ blows apart, i have made new lines 4 times even tried rubber line with clamps rated 300 psi it split, replaced fuel pump that has pressure regulator, the latest line i made last fall i was surprised when i blew off the tank yesterday. is the pressure to high? return blocked? new steel lines installed last summer, any help greatly appreciated, i am new to this forum this is my first post thanks

If I was doing it, I would use the direct attach EFI fittings for stainless steel braided hose from Racetronix. This is the hard line end.
https://www.racetronix.biz/p/fitting-ptfe-6-hose-to-5-16-8mm-quick-connect-female/fit-p6qdf56

This is the pump/regulator end.

https://www.racetronix.biz/p/adapter-qdf-3-8-3-8-tube-black/fit-t38qdf38

This is the nylon braid over stainless steel braided line. And, if you just need 14-18" of it or so, I have some you can have at what I paid for it.

https://www.racetronix.biz/p/-6-hose-teflon-ss-nylon-braid-black/tft1168-06b

Direct attach eliminates the common -6 male x EFI QD 5/16" and 3/8" tube adapters we all use.