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Underhood fuel leak

Discussion in '1st Gen Tundras (2000-2006)' started by 2000SCLB, Jul 15, 2021.

  1. Jul 15, 2021 at 11:23 AM
    #1
    2000SCLB

    2000SCLB [OP] New Member

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    Hello all... having a major fuel leak, and I can't find the right replacement part. Took some pics, seems like a fitting where 2 hard lines come together rusted out, spraying gas everywhere :/

    It's a 2000 tundra with the 3.4...

    Circled in red General location and a closeup of the offending part. Any help is highly appreciated!
     
  2. Jul 15, 2021 at 11:29 AM
    #2
    Jack McCarthy

    Jack McCarthy Navigating the luminiferous ether to see the light

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    If it’s anything like the power steering lines, the individual part is probably part of a complete assembly. I’m guessing mucho $$$. I don’t have the 3.4L FSM so I couldn’t tell you.

    When you pull it up on a dealer website, does it show a complete fuel line for sale?
     
  3. Jul 15, 2021 at 11:44 AM
    #3
    BubbaW

    BubbaW Saw it right off

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    While I have different year/model, pretty sure the below is what your looking for....whatchamacallit. I'll look at McGeorge in fuel section, might find a part unless others know what they call it.

    FuelPart.jpg

    Fuel part 1.jpg
     
    Jack McCarthy likes this.
  4. Jul 15, 2021 at 12:13 PM
    #4
    BubbaW

    BubbaW Saw it right off

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    That's gonna be a good one to find as it appears to go all the way to the tank. If you HAVE to drive it, I would consider getting a length of proper fuel line to go from red circle in pic below to hard pipe at the fuel rail.
    That's the farmer in me but perhaps others have better suggestions. Unless someone shows up with how to search hard lines to tank, the dealer might be able to help if you took pictures to them.

    Fuel4.jpg

    Fuel3.jpg

    Would definitely confirm with a dealer but it appears the part # is 23801-62100 that goes to fuel rail and the other goes to the fuel filter !

    Fuel5.jpg
     
    Last edited: Jul 15, 2021
    Aerindel and Jack McCarthy like this.
  5. Jul 15, 2021 at 12:52 PM
    #5
    irhunter

    irhunter New Member

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    I look forward to your solution. I am sure I have that in my future.

    Tying the un-rusted steel line into a rubber hose...that is not going to be easy. Especially considering (1) the male hose nut is very rusty, (2) the limited access, and (3) the need to contain relatively high pressure. Not like the old days of low-pressure carb fuel lines.
     
  6. Jul 16, 2021 at 5:05 AM
    #6
    Festerw

    Festerw New Member

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    If you're not into buying the whole line from the tank to rail, here's what I'd do.

    Use a mini hacksaw to cut both ends away from that fitting.

    Use a proper tubing cutter on the rear line since it's not super rusty then install a new nut and flare it.

    Remove the line at the fuel rail, take it to a shop and have them remove the steel fuel rail side of the line and crimp it onto a new hose and have them make a new line with the correct flare fitting to match what you put on the old tank like.

    So ultimately you'd end up with something like
    old line from tank>male flare nut>female flare nut>new steel line>new rubber line>old banjo fitting to fuel rail.
     
    Siebler and KNABORES like this.
  7. Jul 16, 2021 at 5:16 AM
    #7
    irhunter

    irhunter New Member

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    If he could manage to do that part...he could add a flare/hose barb to that unrusted tube and then a male/male hose barb fitting to tie the new rubber into the existing rubber.

    But, it sure looks like Festerw's Step #1 will be tough w/o removing the hose assembly from the truck.

    Roy
     
  8. Jul 16, 2021 at 6:28 AM
    #8
    Festerw

    Festerw New Member

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    There's a reason fuel lines are flared, crimped, etc, though. It should work but if there's a failure 40psi fuel spraying around a hot engine bay is a problem.
     
    BossHog and irhunter like this.
  9. Jul 16, 2021 at 7:02 AM
    #9
    irhunter

    irhunter New Member

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    You got that right.
     
  10. Jul 15, 2022 at 10:15 AM
    #10
    Holzemer

    Holzemer New Member

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    Bumping this thread to see if anyone has new suggestions. I have the exact same problem and am unable to find the parts. Can I replace the whole line with a specific type of fuel line?
     
  11. Jul 15, 2022 at 12:08 PM
    #11
    irhunter

    irhunter New Member

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    Sure.

    There are hard-line options...steel, copper-nickle, and such.

    And, plastic/rubber.

    https://www.hemmings.com/stories/20...-line-hose-what-you-should-and-should-not-use

    I recently did a brake line using copper-nickle, and it worked well. Easy to bend for a hard line.

    https://www.youtube.com/watch?v=_Tm6N5l69_c

    One of the problems with replacing a fuel line is the tie-in between the new/old lines. After you decide what material you'll use...you can investigate material-specific tie in options.

    Roy
     
  12. Sep 21, 2022 at 6:07 PM
    #12
    2003DC

    2003DC New Member

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    Any follow up on this issue? How did previous posters resolved this problem? Any pics?
     
  13. Sep 23, 2022 at 5:24 AM
    #13
    irhunter

    irhunter New Member

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    I, too, continue to be interested. I just discovered my fuel filter is really rusty...along with the associated hard-line fitting. It is easy for me to imagine wrecking the fitting...ending up with the same, more or less, problem as the OP.

    Roy
     

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