Try reseting the computer. My 92 Deville did that on day and it turned out to be a faulty air compressor drawing to many amps..
A person can reset the air ride suspension on a Cadillac Deville by disconnecting the compressor wiring harness from the compressor itself. This is accomplished by putting the vehicle on ramps.
To replace the air ride compressor on a 1999 Cadillac DeVille Concours remove the air shocks located under each wheel and replace it.
The air compressor is located above the rear axle on the passenger side
Not sure if you share the same compressor model, but the H6 compressor in my 1994 sedan deville is not serviceable. Remans however are available on Ebay and affordable new units can be found at RockAuto.com
The Level Ride Compressor on your '96 DeVille is located underneath the car near the right rear wheel. Just follow the plastic tube from the air-shock to pinpoint it.
that depends on what is wrong have you checked the compressor?
Low refrigerant? Blown fuse? Bad compressor?
Air ride compressor, air suspension compressor, and air pump are the names used for the same device. They are used to pump up the air suspension.
the level ride air compressor is located under the hood.drivers side front fender well,right behind battery
The AC low side port on a 1999 Cadillac DeVille is against the firewall. It is on the larger of the two hoses going to the AC compressor.
car must be lifted its not a simple job as the compressor comes ou the passenger side wheel well.
Computer controlled? Not adjustable
remove the a/c compressor that's how I've had to do it in the past that's the only way to do it
the compressor relay is in the underhood fuseblock drivers side of the engine compartment.
controlled by computer --not adjustable
I t is either a 79 or an 85mm belt
78 inch 6 rib belt.
Bad compressor? Blown fuse? Broken air line?
It could be symptomatic of a larger problem. The coolant may not be circulating properly, or the indicator panel or car's computer could be developing trouble.
If you unhook the battery for an hour, when you re-connect the cable it should reset the computer.
replaced battery in 1991 cad deville and reprogramed computer as car manual said. now car will turn over but not start
Best way to access the AC compressor is through the wheel well. The panels behind the tire come off fairly easily. Depending on what is wrong with it you could replace , the clutch, with the compressor still on the car. Not an easy job but doable with the proper tools.
this resets the computer in most cars. take the battery cables off the battery and touch them together your computer is reset.