Air pressure stays steady, my first thought was the bag may have a small in-audible leak or a some how deffective bag. I removed the bag and swapped with the known good bag on the drivers side in hopes of discovering an improper bag size or malfunction or the sorts. But no such luck, the problem stayed on the passenger side rear. My second thought was maybe the leveling valve was bad, may not be stroking properly possibly keeping full air pressure back. Replaced leveling valve and adjust height properly. No such luck again. Third thought was something may be binding and keeping the R.R. from lifting to proper height. Removed shocks, and inspected. Shocks in good condition. Used a small pipe stand and was able to raise R.R. with just a hand operated screw lift on pipe stand. All air lines are clean and clear from and debri or blockage. So thru my process of elimination I am down to two possible situations: 1) Frame twisted some how but very unlikely since the driver was stationary when the event occured. 2) Possible weak springs, but I hate to buy new set of hangers, pads, u-bolts, and springs just to find out the problem may still exist afterwards Still have my ears open in hopes that I've missed something small and stupid.