2014 Yukon Denali rear suspension questions

Discussion in 'Brakes & Suspension' started by Johnnyringo, Oct 4, 2016.

  1. Johnnyringo

    Johnnyringo Member

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    My newly acquired Yukon is equipped with auto leveling rear suspension. Today I measured the hitch receiver dimension between my 05 Envoy and the Yukon. The receiver on the Yukon is 3" higher off the ground than the Envoy's.

    My enclosed car trailer is a tandem axle trailer with no provision for a weight distribution hitch due to the V-nose. I attached the trailer to the Yukon with the ignition key off and the vehicle dropped down about 2" in the rear. I then started the engine and the rear suspension auto leveled the rear back to the original height. That sets the tongue height too high. I already have the largest (7") drop hitch I could find.

    I'm now looking for solutions. What if I pull the fuse for the auto level air pump for example?

    Any and all suggestions welcomed. Thanks, JR
     
  2. Mooseman

    Mooseman Moderator

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    If your rear end is too high, especially compared to your front, you could adjust the level sensors down.
     
  3. Johnnyringo

    Johnnyringo Member

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    Can you tell me how to do that?
     
  4. northcreek

    northcreek Well-Known Member

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  5. Mooseman

    Mooseman Moderator

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    Very easy. Above each side of the axle, there is a sensor with a rod that extends to the body. Pop it off and turn it to extend it more (make it longer) equally on each side, pop it back in. Next time you start it, it will lower to the new height.

    This will lower the rear but it will always be that height. So if your rear winds up sagging while loaded, it will sag while unloaded so you still want it to be even with the front.
     
  6. Johnnyringo

    Johnnyringo Member

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    Does the vehicle have a coil spring rear suspension with the air shock providing the leveling adjustment? What would happen if I pulled the fuse for the pump?
    Thanks, I appreciate your input.
     
    Last edited by a moderator: Oct 5, 2016
  7. Mooseman

    Mooseman Moderator

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    If it's a similar system to the GMT360, it's just air bags, no springs. If you pull the fuse, the level would stay at whatever level it's at but over time, will lose air and go low. How fast it does this depends on if there are any leaks. It could hold for months, just days or hours.
     
  8. TollKeeper

    TollKeeper Well-Known Member

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    Check out ebay items
    301867673151
    301944225452
    232094428066
    They may solve your problem.

    Or look for one that's adjustable. But they run around 200-300
     
    Last edited: Oct 16, 2016
  9. Johnnyringo

    Johnnyringo Member

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    Thanks for all the replies. I appreciate it very much.
    It took some work, but I got it done by using a Curt short bar WDH and
    CURT Weight Distribution Shank #17125.




    I had to add 3 additional adjustment holes and cut about 2 1/2" off the bottom. Just got back from a 3000 mile trip towing my car hauler. Worked out great!

    [​IMG]
     
    Last edited by a moderator: Oct 18, 2016
  10. littleblazer

    littleblazer Gold Supporter

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    I don't know how the Yukon is but the escalade doesn't use airbags in the coils it uses air bags on the shocks. I imagine it would be the same system.
     

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