Two problems related to power assist brake vacuum have been reported for the 1999 Volvo S80. The most recently reported issues are listed below.
The contact owns a 1999 Volvo S80. The contact stated that the vehicle would idle high and then low. The vehicle would slow down as well. When he released the accelerator pedal, the vehicle would lurch instead of gain speed. The failure occurred every time the vehicle was driven. The contact took the vehicle to the dealer and they stated that there was not enough vacuum in the system, which caused a loss of power assist to the brakes. In reference to NHTSA campaign id number 06v441000, both the dealer and manufacturer stated that they could not assist because the vehicle was ten years old. The current mileage was 100,348 and failure mileage was approximately 95,000.
Brake booster leaking vacuum causing the car to mis fire and run erratic and die in middle of traffic. The booster quits working which make it a death trap and hard to stop. Lose of power brakes.