2015 Tahoe LTZ quite bouncy suspension..

[Rooster4]

So, noticed my suspension is now very stiff.. wasn't before..

This seemed to change after towing a boat trailer (Air compressor inflated suspension) and turned off truck to unhook.. Then the trailer tongue wouldn't let go of the ball lifting the back end high (then jumping on rear bumper released it). I'm not sure if this messed up the calibration etc and now the rear seems a bit high. I pulled the air lines off the rear shocks and they sank down (maybe 1/2-3/4"), took it for a drive and seems the same (and I believe the shocks lifted back up as I pulled them again after test drove and it sank 1/2" or more again.).

Perhaps this is all a coincidence timewise..

Anything I can do before taking it to a dealer who'll I'm sure want to replace things? Anything I can do to the fronts to release them?

 

[STORMIN08]

i would think pulling the lines would release the air without issue.

the level sensor arm is what tells the system where in height your at, that correlates to the PSI required.

look over the arms for the level sensor and make sure they are not damaged.