1989 Lincoln Continental Riding Low and Bouncy

I have a 92 Lincoiln Continental. The rear suspension just went "flat", which is notorious with these cars. A temporary fix and I do stress temporary, is quick and cheap. All one needs is two air valves and a can of fix a flat. Cut the two air lines going to the rear at the compressor. Seal the lines you just cut. In the trunk compartment, locate the air lines going to the rear air bags on each side. Cut the lines there and install an air valve on each rear line on the bag side. You will have to get adapter air line to make it connect properly. Then spray a can of fix a flat into each rear air bag with the car running and the ride control switch on. Switch must be on or the valves will not open to allow the fix a flat in. Then pump up the car through the air valves you installed in the rear with an air compressor at a gas station. It's that simple. It seals the leak in the bag and is still holding air two weeks later. The front suspension still works as it should. I must say that this 92 Lincoln is the very worst engineered car that I have ever worked on. Replacing a heater core? Don't even think about it.