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AC drain relocation

Discussion in '5th Gen 4Runners (2010-2024)' started by morfdq, Jun 9, 2025.

  1. Jun 9, 2025 at 4:19 PM
    #1
    morfdq

    morfdq [OP] New Member

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    Just watched this video on a quick fix to stop your ac drain from dumping water on your frame and rusting. Easiest fix I’ve ever done. Went to Oreillys and got a 3/8 to 3/8 brass hose connector and 10 inches of 3/8 fuel hose. Total cost $6.09. Time to install. Less than 2 minutes.

    https://youtu.be/xKxgxBI4k7k?si=p4Usl47h58cl3KHw
     
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  2. Jun 9, 2025 at 4:31 PM
    #2
    glwood54

    glwood54 Stop making me buy stuff!

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    A well documented fix that's been posted many times. Did you use any kind of clamps, or just the fitting into the two hoses? And, did you secure it to the side of the frame at all or just let it hang?
     
  3. Jun 9, 2025 at 4:37 PM
    #3
    morfdq

    morfdq [OP] New Member

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    No clamps just the brass connector. Routed it just like in the video behind the splash shield. Stupid easy fix.
    IMG_2655.jpg
     
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  4. Jun 9, 2025 at 5:09 PM
    #4
    94hokie

    94hokie New Member

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    Yep, did mine right after I bought it. Dumb to drain the AC line right on top of the frame.
     
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  5. Jun 9, 2025 at 6:08 PM
    #5
    TTerraMB

    TTerraMB New Member

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    Same here!
     
  6. Jun 9, 2025 at 6:47 PM
    #6
    salvojimmy

    salvojimmy New Member

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    I have wondered if the reduced inside diameter of the fitting between the existing hose and the extension could cause a possible clogging point ??
     
  7. Jun 9, 2025 at 6:57 PM
    #7
    3JOH22A

    3JOH22A トヨタ純正男娼

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    Now you have a long hose for insects to build a nest in. See T-SB-0080-19: https://static.nhtsa.gov/odi/tsbs/2021/MC-10201400-9999.pdf
     
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  8. Jun 9, 2025 at 8:11 PM
    #8
    Slopemaster

    Slopemaster Slope Survivalist

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    My drain hardly drips on the frame during summer months. Must be the low humidity, usually between 10-15 %.
    I am not disputing Viking, but I fail to understand how plain water can cause that area to rust. There must be salt residue on those frames. I rinse the frame off every time I wash the car and have seen no evidence of rust anywhere after 7 years. Must be a rust belt problem.
     
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  9. Jun 9, 2025 at 8:23 PM
    #9
    TRD_Bro

    TRD_Bro New Member

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    Yup. I did this mod last summer. Very simple, worth the 5 minutes and $7.
     
  10. Jun 10, 2025 at 5:35 AM
    #10
    Curlystooge

    Curlystooge Member

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    Not really worried about it, but have had the same thought. I have suffered drain tube blockage on other vehicles that backs up inside the vehicle. Stinky.
     
  11. Jun 10, 2025 at 6:01 AM
    #11
    glwood54

    glwood54 Stop making me buy stuff!

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    In the west and southwest, it seems to be a solution looking for a problem. No rust here.
     
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  12. Jun 10, 2025 at 6:07 AM
    #12
    salvojimmy

    salvojimmy New Member

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    ditto here, why my thought on it
     
  13. Jun 10, 2025 at 7:06 AM
    #13
    vthoky

    vthoky A mighty curious fellow

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  14. Jun 10, 2025 at 7:19 AM
    #14
    94hokie

    94hokie New Member

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    Yeah unless I'm missing something, the parts description on bam (and other sites) doesn't actually list it has the Arinix tip, it just states its the drain line itself. ?
     
  15. Jun 10, 2025 at 11:04 AM
    #15
    3JOH22A

    3JOH22A トヨタ純正男娼

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    Yep. The "Arnix tip" is 87265-33010. Note the pesticide wears off after a year, so it's a yearly cash grab if you keep it up.
     
  16. Jun 10, 2025 at 11:06 AM
    #16
    94hokie

    94hokie New Member

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    Yeah, as someone who does his own pest control that's what I figured. For me, and having done this mod on my 2013 and never had an issue, I'm not going to worry about adding that tip to my 2023.
     
  17. Jun 10, 2025 at 12:05 PM
    #17
    Slopemaster

    Slopemaster Slope Survivalist

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    It’s cheap insurance, so it makes sense to do it.
     
  18. Jun 10, 2025 at 12:11 PM
    #18
    94hokie

    94hokie New Member

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    If you do your own pest control (I know, a lot of people don't), you can simply spray a bit of Talstar/Tempo/Suspend around the end of the drain line (not in it) and achieve the same thing.
     
  19. Jun 10, 2025 at 12:20 PM
    #19
    LuLu

    LuLu New Member

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    By extending the hose all the way to the bottom. Doesn't that expose the hose to all road elements.
    In addition the pipe has been narrowed in-between. Risking blockage from mold/fungus growth.
    The new gap creates entry past the splash guards.
    Just my 2C
     
  20. Jun 10, 2025 at 2:59 PM
    #20
    morfdq

    morfdq [OP] New Member

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    It’s not like a high pressure hose. It’s water dripping out.
     
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  21. Jun 10, 2025 at 4:01 PM
    #21
    vthoky

    vthoky A mighty curious fellow

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    That’s what I’m seeing.


    Thanks for the part number. That’s ten bucks and change at BAM Wholesale.
     
  22. Jun 10, 2025 at 6:30 PM
    #22
    McSpazatron

    McSpazatron New Member

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    There’s been at least a couple of times I almost decided to do this mod. Each time I decided to leave well enough alone for these reasons.

    In any case, I rinse out my frame with fresh water often enough. Along with the wool wax, the frame area it filters over is still rust free.

    That said, I have considered making a drip deflector to allow the water to drip onto a little ramp of sorts mounted to the spot the water falls, so it immediate gets diverted off the frame and onto the ground.

    But then I got lazy and never got around to it lol.
     
  23. Jun 10, 2025 at 8:59 PM
    #23
    Lc200

    Lc200 New Member

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    I have covered around 25k miles after I did this mod.
    You are thinking too much into it. Its just a rubber hose that extends the drain pipe by 6 to 8 inches. It can be zip tied around the area so it does not move. Infact you could add just 4 inches of hose to put it just past the top of the frame.
    No additional entry points are made. That area is completely open to the elements and adding this little hose does nothing to it.
    Also, the amount of water that falls is a tiny little stream. Enough space even through the connector for it to pass.
    And the AC drain pipe is already rested at the footwell, so you not really adding any weight to it or pulling it

    Now if the clean water of the AC drain actually rusts the frame or not is a different question.
     
    Last edited: Jun 10, 2025
  24. Jun 11, 2025 at 6:25 AM
    #24
    salvojimmy

    salvojimmy New Member

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    Exactly. Do you worry about rain water that gets on the frame. My take is the A/C drip does not stay there very long when the vehicle is movie anyway and when you park and turn off the A/C how much water can really be there. Seems more a solution looking for a problem. ????
     
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  25. Jun 11, 2025 at 8:20 AM
    #25
    morfdq

    morfdq [OP] New Member

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    sweet jesus! you will build a "ramp" to divert the water but wont add a hose to just extend it bc you're worried about dust and rocks.
     
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  26. Jun 11, 2025 at 8:55 AM
    #26
    LuLu

    LuLu New Member

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    :benchpress:

    Interesting valid points. Both sides. We can agree to disagree.
     
  27. Jun 11, 2025 at 1:29 PM
    #27
    McSpazatron

    McSpazatron New Member

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    Lol! It would have been a sweet ramp too :p

    The though of mold growing in a line that was constricted by the hose couplings is what actually gave me pause.

    I’m not sure if you’ve noticed, but I’m full of great ideas that I never actually do because I keep thinking of what ifs. I also have commitment issues. :D
     
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  28. Jun 11, 2025 at 2:21 PM
    #28
    Lc200

    Lc200 New Member

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    I went overboard with the length.

    IMG20250611161930.jpg
     
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  29. Jun 11, 2025 at 3:32 PM
    #29
    morfdq

    morfdq [OP] New Member

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    That’s awesome brother. You made me laugh. Cheers!
     
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  30. Jun 11, 2025 at 4:55 PM
    #30
    vthoky

    vthoky A mighty curious fellow

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    Looks familiar!
     

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