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Question about A/C condensation drain.

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Taco Pete626, Sep 11, 2013.

  1. Sep 12, 2013 at 8:19 PM
    #21
    Dizo

    Dizo Well-Known Member

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    Just today I was working on some freezing concerns that lead to shortening engine breather hoses on our haul trucks at work. In a colder climate long hoses tend to provide more opportunity for freeze up, especially when they are routed all the way to the base of the vehicle. Toyota has to design a truck for all climates and they must have decided that the risk of a little bit of cosmetic surface rust wasn't as much of a concern as freezing the line was.

    If you'll never see cold temps then why not extend it :) , but i'm doubtful Toyota made the decision based purely on a few cents of hose. A frame rust issue because of a clear 'design fault' such as this would be an easy warranty sell at any rate.
     
  2. Sep 12, 2013 at 11:44 PM
    #22
    Taco Pete626

    Taco Pete626 [OP] Well-Known Member

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    That's a good point. Still, I think Toyota could have place the drain where it didn't drip onto anything
     
  3. Sep 13, 2013 at 12:07 AM
    #23
    Rich91710

    Rich91710 Well-Known Member

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    Defroster runs the AC compressor and will generate condensation.
     
  4. Sep 13, 2013 at 12:10 AM
    #24
    OZ-T

    OZ-T Did you get your precious photos ?

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    Both settings
     
  5. Sep 13, 2013 at 12:13 AM
    #25
    Rich91710

    Rich91710 Well-Known Member

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    Unless you do the mod that disables automatic AC with defrost ;)
     
  6. Sep 13, 2013 at 8:30 AM
    #26
    TxFireman

    TxFireman Factory Pilot

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    Freezing is a valid point for many, but not for me, where I live. I can almost hold my breath for as long as our temps drop below freezing. But, I can see where it could be a concern up north. I stopped in this morning and grabbed the hose and joint to do mine.

    If I lived somewhere with cold winters and hot summers, I would likely just remove the addition during the really cold portion of the winter. But I think it's a valid option for those of us who don't want to live with it like it is.
     
  7. Sep 13, 2013 at 2:54 PM
    #27
    TxFireman

    TxFireman Factory Pilot

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    On second thought, wouldn't the engine compartment warmth keep the hose temps up, in most conditions? I would think so. In an extreme environment, with the addition, you could put it as close to engine/exhaust warmth as you felt comfortable. I certainly don't think a long hose is going to freeze up any more than the shorty.

    So, engine running, probably warm enough to prevent freezing. Engine off, it's probably done dripping by the time the engine cools down enough to return the compartment to sub freezing temps. Just a thought.
     
  8. Sep 13, 2013 at 3:55 PM
    #28
    Dizo

    Dizo Well-Known Member

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    Depends where they're routed. Even the engine breathers on our haul trucks up here have freezing issues in winter. You have to route a hose pretty close to the engine to keep it above freezing even in -20C, which it's reasonable to say most vehicles need to be designed for. I think anyone concerned about rusting issues from the condensation drain isn't too concerned about freezing, so you're probably good to go with the extension :)
     
  9. Sep 13, 2013 at 7:32 PM
    #29
    Rich91710

    Rich91710 Well-Known Member

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    Driving through the Vail area in a snowstorm, all leading and side surfaces of my '03 Tundra were covered in 1/4-1/2" of ice, including the hood, and the roof and windows of the (well heated) cab.
     
  10. Sep 13, 2013 at 7:40 PM
    #30
    dYL0n

    dYL0n ระดับอาวุโส สมาชิกอาวุโส

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    Pretty sure my 06 drain tube is longer than that. I remember moving it out the way when installing my UCAs and later figured out what it was so I aimed it at the ground.
     
  11. Sep 13, 2013 at 7:56 PM
    #31
    TxFireman

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    Honestly, that's not a direct reflection of what was going under the hood. Cold under there? Probably. But sub freezing temps, possibly/possibly not. Some guys in the colder climates block off a portion of their grill to help with engine warm up etc. too, which will also aid in keeping the compartment that much warmer for operation.

    In a nutshell there can be no end to the possibles and what ifs. In the end it boils down to each person known their environment. For those of us who hardly ever see freezing temps (in my case it's usually the wee hours of the morning when I'm warm in bed), and want to prevent the rust, it's a sound and easy option to just add the extension. Everyone else will have to weigh the possibilities. I can see the side of those who don't care about some surface rust building up, and I can side with those who feel it's worth limiting if you can. I'm comfortable with my choice, and everyone else should be too, no matter what they chose to do.
     
  12. Sep 13, 2013 at 8:22 PM
    #32
    OffroadToy

    OffroadToy The dog did it...I swear!

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    A section of garden hose works...
    [​IMG]

    attached screen on drain hose to keep the critters out...
    [​IMG]
     
    Last edited: Sep 13, 2013
  13. Sep 14, 2013 at 5:36 AM
    #33
    atebit

    atebit What's all this, then?

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    I was thinking more along the lines of clogging with gunk, not necessarily with ice. That was the issue on my Celica. Also at home infrequently I've had to perform a compressor angioplasty on my A/C condensate lines due to mineral or other gunk residue clogging the lines. The narrower & longer the hose the more likely it is to clog in this way.

    If you examine the extension line once or twice a year for blockages prolly will be fine.
     
    Last edited: Sep 14, 2013
  14. Sep 14, 2013 at 6:44 AM
    #34
    Failure2Comply

    Failure2Comply Well-Known Member

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    Between the dirt that gets by the air filter, and the biological growing, EVERY condensate pan has a science experiment that would panic the CDC. Well maybe not the CDC, these are the people that ship Ebola through the US Postal Service. :eek: So restricting the hose outlet can cause this gel/slime/dirt to back up and then you have a condensate leak. In commercial and residential a/c we clean the evaporator coils each spring with a cleaner/disinfectant to kill the biological and to flush the coil, pan, and drain lines. Even something like Formula 409, Fantastic, or any similar spray multipurpose cleaner will do the job if enough is applied and a garden type pump up sprayer works great for applying the chemical. You do not have to rinse it as the condensate makes the evaporator self-rinsing. Now your lady complaining about the smell, well that is another issue. :D
     
  15. Sep 14, 2013 at 7:03 AM
    #35
    Agent Smith

    Agent Smith Always outnumbered, never outgunned

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    Lol at surface rust. Toyota only covers rust perforation for something like 8 years. Key word, perforation. Some water dripping on the frame and causing love rust will be laughed out of the dealer.

    If it bothers you, spray that section of the frame with Fluid Film so that it beads up and rolls off the frame onto the ground.

    I'd kill to have a frame that still looked like all of yours right now.
     
  16. Sep 14, 2013 at 7:11 AM
    #36
    InfernalTacoma

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    I work as a service advisor at my local Toyota dealership and this is a very common problem amongst many Toyotas, the water leaks all over the O2 sensor and causes them to short out. I replaced two in last two days alone for this issue.
     
  17. Sep 14, 2013 at 10:33 AM
    #37
    Taco Pete626

    Taco Pete626 [OP] Well-Known Member

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    So how do you guys fix this at the dealership(talking about the hose, not the o2 sensor)? I wonder if faulty o2 sensors cause by this drain is responsible for some Taco owners out there with horrendous mpg?
     
  18. Sep 14, 2013 at 10:37 AM
    #38
    Taco Pete626

    Taco Pete626 [OP] Well-Known Member

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    That looks like it didn't cost you anything! I do have some old garden hose lengths in garage. I may give this a try. Thanks for sharing.
     
  19. Sep 14, 2013 at 4:07 PM
    #39
    Rich91710

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    It would generate a CEL.
     
  20. Sep 15, 2013 at 4:48 PM
    #40
    InfernalTacoma

    InfernalTacoma Member

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    No real modifications, just add ons. Extang Tuff Tonno bed cover, Toyota rubber bed mat and aluminum bed divider, 5% tint, Bilstein 5100's all the way around (1.75" setting on front)
    Honestly, on certain models we can modify the direction in which the drain will empty but judging by the pics of the Tacoma drain, adding a line extension would make most sense. Since that isn't an authorized Toyota modification (no TSB's, Tech Tips, etc) they wont normally do that for you. The other thing I thought of is maybe making a shield of some sort to direct the flow of water from the drain over the O2 sensor wire.
     
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