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KDSS existing or new owners BEWARE!

Discussion in '5th Gen 4Runners (2010+)' started by ColinClive, Jan 8, 2020.

  1. May 1, 2021 at 1:29 PM
    #91
    ElectroBoy

    ElectroBoy Ad astra

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    Just to follow up on this and what @KLOC pointed out, there actually is active control of the KDSS system by the Stabilizer Control ECU. It controls and monitors the upper and lower shutter valves in the accumulator assembly based on various parameters. One parameter is whether the vehicle speed is above or below 12 MPH. So on pavement and at speed KDSS is engaged, valves are closed. Slow speed on surfaces where there are uneven forces between wheels the valves are open to allow the hydraulics to work and flex the suspension.

    It’s important to pay attention to that electrical connector.
     
    A&P, Snickel Fritz, nimby and 3 others like this.
  2. May 1, 2021 at 1:46 PM
    #92
    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
    Yeah, I see that now.

    I had the impression that the system was all passive, since it's basic functions could be accomplished without electronic intervention. It seems overly complicated, but I'm sure Toyota had their reasons.
     
  3. May 1, 2021 at 5:07 PM
    #93
    ElectroBoy

    ElectroBoy Ad astra

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    I believe that there are different versions of KDSS on older Landcruisers. I thought I recalled reading something about this and saw a photo of it on the ih8mud forum, and there was no electrical connector on the accumulator assembly. It seemed purely mechanical/hydraulic.
     
    Thatbassguy likes this.
  4. May 1, 2021 at 5:23 PM
    #94
    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
    You're probably right. I assume the earlier version may have been entirely mechanical and self sufficient.

    I still love the benefits I get from KDSS. But, I can fully understand why some folks don't want it.
     
  5. May 1, 2021 at 7:34 PM
    #95
    captrussia253

    captrussia253 New Member

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    Ironman stage 2 lift kit SCS F5 17x8.5 -10 offset wheels 275/70r17 General Grabbers ATX Dobinsons 3" lift TRD PRO wheels 285/70r17 Falken AT3W
    I’ll just continue to clean the area regularly and enjoy years of comfortable ride on and off road.
     
  6. May 1, 2021 at 7:47 PM
    #96
    Thatbassguy

    Thatbassguy New member? Really??

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    ^^^^this. ;)

    The benefits are real. Definitely worth a little bit of maintenance.
     
  7. May 2, 2021 at 5:56 PM
    #97
    Starr

    Starr Life Off the Road, off the Grid

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    KDSS, Baja Sport amber fogs, PRO Black wheels, BFG KO2's
    Definitely a part of regular maintenance, power washing from below every 6 months or so.

    Boeshield is our favorite spray-on corrosion preventer. We're in a corrosive marine environment, and boeshield or corrosion X etc work well at keeping it at bay.
     
    captrussia253 and Thatbassguy like this.
  8. May 7, 2021 at 12:44 PM
    #98
    RayCon

    RayCon New Member

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    TRD skidplate and rims, Greenlane sliders, Bilstein shocks, K&N intake, Thule, Philips LED, BFG KO2s,
    Further to my post(#39). I installed a $12 mudflap in front of the main KDSS cover. I bolted it into one of the crossmembers of my rocksliders. It goes all the way up against the body and just down enough to prevent debris flying up from the tire and onto the cover. This is a very small price to pay for the excellent handling characteristics of the KDSS.
     
  9. May 7, 2021 at 4:18 PM
    #99
    gordonf

    gordonf New Member

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    Can you please share link to the mudflap?
     
    Thatbassguy likes this.
  10. May 8, 2021 at 7:33 AM
    #100
    RayCon

    RayCon New Member

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    There is no link to share. I bought a heavy duty truck mudflap at NAPA, it’s made of rubber and nylon for strength. I simply cut it to fit with a jigsaw. Drilled 2 holes in the slider cross member just forward of the KDSS, tapped the holes to M8X1.25 and bolted the mudflap on with 1” stainless steel washers. As previously mentioned, I drilled larger holes in the KDSS covers and added a few holes. I will still remove, clean and spray some Fluid Film twice a year. The way I see it, you only get one chance at preserving this part! Do it right and with reckless abandon!
     
    ElectroBoy, gordonf and 4Runner fun like this.

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