1989 Buick Electra Repair Question
Mileage: No information provided.
1989 Buick Electra Suspension
Answer
I recommend converting from the air system to passive coil spring suspension. This will be a permanent solution to the problems you are experiencing due to the air ride system. Strutmasters specializes in conversion kits. Here is what they have available for your vehicle: http://www.strutmasters.com/Buick-Electra-Air-Suspension-Rear-Conversion-Kit-p/-cad-r1-be.htm
You will likely also need to replace the shocks. The average life span of a shock is about 50,000 miles so with that many miles on your car, your shocks may be bad as well.
This car came with air shocks not air bags,replace the coil springs,and new air shocks,make sure the height sensor on the control arm is hooked up and working,if you disconnect linkage on height sensor and move the arm up pump should kick on,Good Luck,Lou