I wanted to post my issue and see if anyone can provide some feedback. My 2017 Yukon Denali ride has been rough for the last few months. Dealer told me the rest shocks were locked up. So I got my mechanic to replace the shocks with OEM and the ride only feels slightly better. The whole ride just feels stiff to me but cant pinpoint what tire its coming from, thought once in while it feels normal. It's really hard to tell honestly. I pulled the air hose from the rear shocks and I hear the air pressure releasing. When starting the car, I hear the compressor come un for a few seconds. So I think that is good. I visually checked the ride height sensors and the back 2 linkage seem good. The front passenger linkage has some left/right movement but up/down seems ok, not sure if that is OK or not. Bouncing the front does seem to have a few bounces where the rear come to a rest after one dip. I did do a relearn and it did not seem to make a difference. I think I am down to replacing the front struts and the one ride height sensor. The front struts are about 3-4 years old. Can anyone think of anything else that might be causing my issue?