Air ride

[pwerwgn]

I have a 2018 Denali and the rear air ride will not level out pulled the airline off bled it put back on now the back end is stuck up in the air again ,it has been to dealer and they say everything is working fine but it’s not any ideas

 

[Big Mama]

Did the springs get changed along the way? Do you hear the pump at start up? Auto leveling springs are much softer than non. @Doubeleive knows these things better than most and probably knows what the dealer missed and how to recalibrate it.

 

[Doubeleive]

I have a 2018 Denali and the rear air ride will not level out pulled the airline off bled it put back on now the back end is stuck up in the air again ,it has been to dealer and they say everything is working fine but it’s not any ideas

sounds like the relief valve is not working, if the shocks are rock hard and if it does not deflate a bit after shutting it off. once the vehicle is off and parked within a minute you should hear some air come out and the rear should drop a smidge, then when you start it up the pump should release some air briefly then kick on to inflate the shocks.