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Best way to lift or level kdss system??

Discussion in 'Suspension' started by trail16whitebeast, Jan 5, 2017.

  1. Nov 24, 2021 at 7:28 AM
    #61
    HC_T4R_TE

    HC_T4R_TE New Member

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    17" Black Rhino Glamis w/ K02 AT's Blacked out badging Clear LED DTR conversion
    Hi All, New here and looking for some intel. This seems like the group to pole.

    My 2010 Trail Edition's KDSS system is done. Apparently new lines and pump at minimum. I've heard staggering figures thrown out on other forums/pages about having Toyota do this. Exploring "bypassing" KDSS altogether and potentially removing pump and lines and moving to an aftermarket suspension system, (leveling while I'm at it) ... but with the videos and diagrams in this thread, not sure if that's as possible to do properly as some chatter would indicate.

    Does anybody here know if this is actually possible? What the implications would be and cost vs. just having KDSS fixed at dealership?

    Thanks in advance for any knowledge.

    HC
     
  2. Nov 24, 2021 at 8:14 AM
    #62
    Thatbassguy

    Thatbassguy New member? Really??

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    RSG sliders, Yakima offgrid basket, Pro-Comp wheels, SOS Streamline bumper and skids, Warn VR EVO10S winch + Ultimate Sidewinder, Bilstein 6112 + 5100 + rear lift coils, Rigid Dually SS ditch lights w/Caliraised brackets and OEM style dash switch

    It depends whether the actuator has failed in the open or closed position. If open, it should mostly function as normal.

    Otherwise, you could just delete the system yourself and install an aftermarket suspension. A lot of off-roaders will delete their sway bars and don't mind a little extra lean in curves.
     
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  3. Nov 24, 2021 at 8:34 AM
    #63
    HC_T4R_TE

    HC_T4R_TE New Member

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    And... what happens if actuator is closed? The code the computer threw was C1851 which is a low pressure indicator. Had hoped it was just a wiring or corrosion thing that could be cleaned and/or reconnected... but the shop says no.

    When you say "delete the system" what steps/components would that include?

    Will aftermarket suspension compensate for any sag as the KDSS ultimately loses all pressurization? Not looking for much lift, and would keep the sway bars if possible. Truck is mainly driven on road. Tows a 4000lb boat a few miles a couple times a year and may get into light/medium duty off roading now that we've moved somewhere more accessible to trails.

    Appreciate the dialogue!
     
    Last edited: Nov 24, 2021 at 9:06 AM
  4. Nov 24, 2021 at 9:33 AM
    #64
    Thatbassguy

    Thatbassguy New member? Really??

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    RSG sliders, Yakima offgrid basket, Pro-Comp wheels, SOS Streamline bumper and skids, Warn VR EVO10S winch + Ultimate Sidewinder, Bilstein 6112 + 5100 + rear lift coils, Rigid Dually SS ditch lights w/Caliraised brackets and OEM style dash switch
    It wouldn't sag. It only affects body roll and low speed articulation. Deleting the system will actually allow even greater articulation, but increase body roll. Most folks with aftermarket suspension and sway bars deleted seem fine with the ride.

    You would need to remove the sway bars, at minimum, to disable the system completely. The hydraulic lines, link pins, hydraulic pistons, and accumulator could all be removed as well.
     
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  5. Nov 24, 2021 at 10:00 AM
    #65
    LandCruiser

    LandCruiser Rusting away

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    I would just rip the system out and run it without the sway bars.

    You will have more body roll during cornering, but there are lots of people running trucks without sway bars and no problems.
     
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  6. Nov 24, 2021 at 11:42 AM
    #66
    HC_T4R_TE

    HC_T4R_TE New Member

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    Thanks Folks!

    To that end, (from what you know or have heard) does it make sense to increase spring rate to compensate the roll at all?
     
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  7. Nov 24, 2021 at 11:48 AM
    #67
    LandCruiser

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    Not really, because you’re sacrificing overall ride quality and you’re dealing with way too much mass and inertia. Just use some common sense and don’t drive fast and furious.
     
    Thatbassguy and HC_T4R_TE like this.
  8. Nov 25, 2021 at 5:04 AM
    #68
    Thatbassguy

    Thatbassguy New member? Really??

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    RSG sliders, Yakima offgrid basket, Pro-Comp wheels, SOS Streamline bumper and skids, Warn VR EVO10S winch + Ultimate Sidewinder, Bilstein 6112 + 5100 + rear lift coils, Rigid Dually SS ditch lights w/Caliraised brackets and OEM style dash switch
    Like @LandCruiser said, you would hurt the overall ride quality. Most aftermarket shocks will have better damping than the OEM shocks. This will actually help reduce roll.
     
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  9. Nov 25, 2021 at 7:02 AM
    #69
    HC_T4R_TE

    HC_T4R_TE New Member

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    17" Black Rhino Glamis w/ K02 AT's Blacked out badging Clear LED DTR conversion
    Thanks, BG. I assumed as much, but... assuming is a dangerous thing. I work with high end mountain bikes, so have a pretty good handle on suspension characteristics, but KDSS is a bit of a different animal. I've also been reading a fair bit on AccuTune Off-Road and found this last night:

    upload_2021-11-25_9-58-59.jpg

    While warranty is obviously not a factor for me anymore, wasn't sure about any electronic implications, or unintended consequences of deleting the system altogether. It seems like in a lot of these threads where people have upgraded, lifted/leveled their trucks, the KDSS is still working. I haven't found one yet, where it was cooked and removed. Anyway, I agonize over pulling the pin on stuff like this and will analyze until I'm blue in the face. I appreciate the guidance from this group!
     
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