One problem related to ball joint has been reported for the 1999 Volvo V70. The most recently reported issues are listed below.
The contact stated while driving the vehicle stalled intermittently. The vehicle has been to the dealership numerous times to have the electronic throttle module replaced. The contact was afraid to drive the vehicle. The problem recurred after repairs made. The vehicle surges and stutters violently the manufacturer has been contacted. The door latch was broken. A loose ball joint was replaced. The drivers window would not go up. Updated 01/25/06.