1997 CADDT DEVILLE-----SHOCKS

It will run about the same, there is a good web site we deal with that sells conversion kits or the air components needed to repair your car, we use them all the time. There pricing is good and also have all parts needed.
Your car may just need air bags, but have run into many cars that the air bags had been leaking for a while and were left not repaired causing the air compressor to run so much that it overheated and cooked the compressor and relay.This is hard to say on yours without looking at it. if the air shocks air leaking then you will need to start with that and then if the car does not lift then you will need to check the fuse and relay, if there are good or replaced and still no air is made then compressor will need replacing.
http://www.arnottindustries.com/part_CADILLAC_Air_Suspension_Parts_yid6_pid35.htmlthe compressor is 175.00 and the two shocks are 275.00.
I did not see a conversion kit for this car. take a look at site and see if you can locate one. good day.

look at www.strutmasters.com, you need to replace the whole system or scrap the entire car.

You can't without a ton of adapters & fittings. Options: replace compressor or replace air shocks with aftermarket air shocks that you have to manually fill or replace with standard replacement shocks.

You can, but they won't adjust like your factory ones (automatically) Lots of folks replace w/aftermarket shocks instead of depending on factory units.

Check the electrics and sensors to the pump

CHECK AND MAKE SURE THAT THEY ARE FULL OF AIR AND THEN CHECK THEY FOR THE NEXT FEW DAYS TO SEE IF THEY GO DOWN, AND IF THEY DO THEY ARE LEAKING AND NEED TO BE REPLACED

Check under the hood for the compressor and make sure it is working,If it is the you have a leak somewhere in the lines.If it isn't working,check the fuses.

air

all shocks are gas. air shocks is a modification. if your riding to low or bumpy consider new gas shocks

Try going to a Local Mechanic or Repairing them Yourself. Either way is a LOT Cheaper.