Report: ABS accumulater may fail
Cadillac Fleetwood Problem
Model Year Affected: 1990
The ABS accumulator may fail causing loss of power brake assist. (The brake pedal will become very hard).
Visitor, 1990 Cadillac Fleetwood, 40,000 mi
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.