I have read nearly all the posts about bad suspension here and have not came accross my issue.. ( tho it may be here) my 1998 Deville was fine one day and not so fine a while later, I never really noticed a huge OH MY GOSH point ... my rear end is just laying low... no OBDII codes, no message, I don't even have a RSS option in my codes, I do have the traction control button in my glovebox. . car just has zero shock or air in its rear.. does have a compressior, and its been tested non functional, so do I replace the compressior? buy a set of passive shocks? any ideas or suggestions? Money is to be considered, I don't have $800 for shocks

Thanks guys!