You dont. The Rivy has a automatic air suspension. If the suspension is flat, the motor could be bad, or, the air ride sensor might be bad.
1995 Buick riviera is not equipped with "air ride" type suspension. It is, however equipped with air shocks and coil springs. The air shocks are filled by a compressor in the rear of the undercarriage just in front of the gas tank. If you have an air leak, replacement of the air shocks and/or line kit may be in order.
I had the same problem on my 95 Riviera. I bought a set of air shocks from Autozone and installed them putting the air pressure valve in the trunk out of the way and disconnected the auto system under the car. Now I added some air to the air shocks and it is adjustable by releasing the amount of air according to the ride you like. worked perfectly, and no more pump running constantly. $70.00 for air shocks verses $400.00 for factory pump and original shocks. works great.
Something is wrong with the rear air shocks- either it is the shocks them selves or most of the time the air pump... But first check your fuse to the air pump. see owners manual for fuse location.
air leak or bad alternator
??and what is it you wish to know??
Get air shocks or get wheels with the correct offset.
The 1998 Buick Riviera air conditioner compressor is located in the engine compartment. The air conditioner compressor will be on the left-hand side of the engine.
Lesabres only have air suspension in the rear, they will be a combination of air shocks with a coil spring on the lower control arm.
The 2001 Buick LeSabre rear shocks are held in place with a retaining bolt on each end of the shock. Remove the retaining bolts and the old shocks will come off. Reverse the process to install your new rear shocks.
Air shocks on a Buick Park Ave are adjustable to give a smoother ride. If a shock or compressor fails, the rear of the car will sag an possibly drag on low road bumps.
You unscrew it :S
Everything takes a different form of Freon. Drain the system if it has not been so prior then add R134a Freon into the coolant system.