ABS accumulater may fail on Cadillac Fleetwood

Problem Description and Possible Solution
The ABS accumulator may fail causing loss of power brake assist. (The brake pedal will become very hard).
Problem Data
RepairPal Verified
Average mileage: 100,077 (40,000–135,232)
1 model year affected: 1990
4 people reported this problem
Viewing 1 - 2 of 2 problem details
same problem
Power assist in brakes was totally gone. Replaced with "ACDelco 25528382 Pressure Accumulator" found at amazon.com for $110. Problem solved. Don't forget to bleed off any pressure before unscrewing it by pumping brake pedal to floor about 40 times with vehicle and key turned OFF.