One problem related to power assist brake has been reported for the 2002 Mercury Sable. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Mercury Sable based on all problems reported for the 2002 Sable.
We have a 2002 Mercury Sable LS premier model. This "failure" has happened several times now, but neither of us communicated to the other about it until today. It is an intermittent surge of the car when braking. The latest time was today, and it happened to my wife. It happened to me also several weeks ago as well. I stepped on the brakes and instead of stopping, the car seemed to go faster and not want to stop. Extreme force was needed to stop the car. Then it was fine.