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Truth or myth?

Discussion in '5th Gen 4Runners (2010-2024)' started by Whiteout Runner, Oct 6, 2022.

  1. Oct 6, 2022 at 4:49 PM
    #1
    Whiteout Runner

    Whiteout Runner [OP] New Member

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    Is it true that topping off your tank when refilling will ruin the gas sensor on a 4Runner? Is a little over a bad thing or once that chunk happens to pull it?
     
  2. Oct 6, 2022 at 4:54 PM
    #2
    Jynarik

    Jynarik I like boobies

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    it’s best to stop filling at first click. Over filling gas tank can cause a couple of issues, including rupturing
     
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  3. Oct 6, 2022 at 5:18 PM
    #3
    whippersnapper02

    whippersnapper02 New Member

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    It can introduce raw fuel into your EVAP system and cause issues. That's with any vehicle on the road with EVAP.

    I fill until it clicks, wait 10 or so seconds and fill again until it clicks. That's it.
     
  4. Oct 6, 2022 at 5:25 PM
    #4
    Saker

    Saker New Member

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    ^^^

    This is the correct answer.

    Don't continue filling it after that. The cost of your repair is not worth it!
     
  5. Oct 6, 2022 at 5:29 PM
    #5
    Dillusion

    Dillusion New Member

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    Some guys really need than .1 Gallon more to top it off?
     
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  6. Oct 6, 2022 at 5:31 PM
    #6
    Spare Parts

    Spare Parts New Member

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    I like the 10 second part, I fill until it clicks and then fill again til clicks again then done.
     
  7. Oct 8, 2022 at 7:05 AM
    #7
    glwood54

    glwood54 Stop making me buy stuff!

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    I fill to first click, done. Every time. That keeps my calculations based on the same process. YMMV.
     
  8. Oct 8, 2022 at 7:13 AM
    #8
    canadian.bacon

    canadian.bacon H9 halogen is the best led bulb

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    I never overfill. The amount of fuel after the first click is negligible. Why even bother ?
     
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  9. Oct 8, 2022 at 8:49 AM
    #9
    LCJ77

    LCJ77 New Member

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    Dam I've been over filling for years!!! :facepalm::frustrated::goingcrazy:Not gonna anymore!:cheers:
     
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  10. Oct 11, 2022 at 6:21 AM
    #10
    Whiteout Runner

    Whiteout Runner [OP] New Member

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    Thanks all!
     
  11. Oct 11, 2022 at 1:51 PM
    #11
    Jackmahoffer

    Jackmahoffer New Member

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    I overfilled mine badly one time. It didn't come back out of the filler neck but I'm sure it overflowed the evap system. I smelled gas for probably 20 minutes from inside the truck while I was driving. Lesson learned, never filling past the first click again.
     
  12. Oct 11, 2022 at 3:50 PM
    #12
    Captain Spalding

    Captain Spalding . . .

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    Does anyone have an evap system diagram for the 5th Gen? I’ve seen two versions. One has a single small line from the filler neck to the high point on the tank (this prevents the glug-glug as the tank is filled). The other has the same line, plus a second small line that runs from the filler neck to the canister. Which do we have? Or is it different from both of those?

    And if it’s the second style, and over-filling means sending liquid fuel to the charcoal canister, wouldn’t driving the vehicle tend to draw off the evaporating fuel from the canister over time and resolve the issue?
     
  13. Oct 11, 2022 at 3:56 PM
    #13
    4runningMan

    4runningMan New Member

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    You just never know when you might need that extra hundred yards.
     
  14. Oct 11, 2022 at 4:07 PM
    #14
    QStune

    QStune New Member

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    This is correct.
    While on the subject, you should fill as slow as possible. While pumping slow, the pump reads closest to the actual fuel transferred.
     
  15. Oct 11, 2022 at 4:07 PM
    #15
    Spare Parts

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    In the 4Runner that’s feet, other vehicles it’s miles. Seriously 1/10 of a gallon is a more than a mile, but under 2.
     
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  16. Oct 11, 2022 at 4:14 PM
    #16
    Spare Parts

    Spare Parts New Member

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  17. Oct 11, 2022 at 4:42 PM
    #17
    Captain Spalding

    Captain Spalding . . .

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    A lot of coulds and mays and probablys in those articles. I don’t typically go past the first click anyway, but I’d be interested in having a crisp understanding of the situation.
     
  18. Oct 11, 2022 at 4:47 PM
    #18
    Spare Parts

    Spare Parts New Member

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    So like this threads, no clear answer. In my younger days, I filled till the brim, currently it’s one extra click. Probably will just click it and finish in the future.
     
  19. Oct 11, 2022 at 9:43 PM
    #19
    4runningMan

    4runningMan New Member

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    The funny thing about this whole subject… it’s only going to matter when you’re at the point of running out of gas. Which we never do, for the most part.

    And that rare occasion that you do run out of gas? Pumping beyond the first click isn’t likely to have saved you anyway.

    Isn’t it also bad to run with the gas tank at a very low level? It’s hard on the fuel pump or something? Because of that, I always fill up when I’m just under 3/4 of a tank. So, filling up past the first click is kind of a non-issue.

    Now, if you’re OCD and need the pump to read a nice, even dollar amount at the end, well that’s a whole new thread entirely.
     
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  20. Oct 11, 2022 at 10:02 PM
    #20
    Hans Moleman

    Hans Moleman New Member

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    I give it 15 clicks then consider it good
     
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  21. Oct 11, 2022 at 10:09 PM
    #21
    glwood54

    glwood54 Stop making me buy stuff!

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    Really? 3/4?
     
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  22. Oct 12, 2022 at 8:19 AM
    #22
    4runningMan

    4runningMan New Member

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    Yep
     
  23. Oct 12, 2022 at 9:45 AM
    #23
    Daddykool

    Daddykool Photography enthusiast

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    One day years ago I was filling my 2001. I would always squeeze in as much as I could when I was getting a fuel discount ($1/gallon). Well, this time I saw gas pouring out on the ground from the top of the tank. Turns out the frequent overfilling must have eroded/damaged the filler neck fitting. Now, it's first click only for me. And not right before getting home, either. I want to drive a bit after filling to ensure there's no gas in the filler neck.
     
  24. Oct 12, 2022 at 11:03 AM
    #24
    McSpazatron

    McSpazatron New Member

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    Man, that would be filling up every day on most days for me lol.
     
  25. Oct 12, 2022 at 11:16 AM
    #25
    glwood54

    glwood54 Stop making me buy stuff!

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    That just seems to be needlessly hauling around extra weight all the time. I like to feel like I get some advantage out of a tank that doesn't weigh as much as when full.
     
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  26. Oct 12, 2022 at 4:19 PM
    #26
    Daddykool

    Daddykool Photography enthusiast

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    Yep. When my 4R gets down below 1/8 tank, it's like I added a turbo lol.
     
  27. Oct 12, 2022 at 4:59 PM
    #27
    McSpazatron

    McSpazatron New Member

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    lol. Maybe that explains why I think on some days I get better mpg than others. Never bothered to correlate fuel level with mpg, but maybe I should.
     
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  28. Oct 12, 2022 at 5:21 PM
    #28
    kolter45

    kolter45 Inferno Pro & 4.0 Tacoma

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    OP. Dont do it! Stop! It will certainly break it!! It’s worst if you do it to a Tacoma or Corolla. Def don’t on a 4Runner
     
  29. Oct 12, 2022 at 6:24 PM
    #29
    Sandbuster

    Sandbuster Breaking Wind

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    My answer (which will be wrong for some) is if I'm on a road trip I fill it up then a little bit more as I know I'll be sucking the tank done while continuing on my trip. For around town normal stuff I generally will stop at the first click, especially during summer temps as fuel expands fairly quick and it needs space in the tank...
     
  30. Oct 12, 2022 at 7:13 PM
    #30
    4runningMan

    4runningMan New Member

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    Haha I just realized I mis-spoke. I meant when I’m down to 1/4 tank left. In my head I was thinking “3/4 of a tank down”.
     

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