Two problems related to steering rack have been reported for the 1998 Buick Park Avenue. The most recently reported issues are listed below.
While driving on I-95 at 65 mph steering rack broke and I was unable to control the steerig of the car unless I slowed down and continued to correct the random direction car was taking.
While making left turns the steering wheel pulsates for no reason. Vehicle has been taken to dealer where they replaced steering rack. Problem reoccurred.