Lincoln Mkx suddenly had a hard pedal and checked for the possible fluid leaks and bleed the system. No brake fluid leaks were found. It has been incormed this could be a brake booster or ABS pump issue, almost crashed my vehicle in a highway

- Worcester, MA, USA

The contact owns a 2011 Lincoln MKX. The contact stated that at start-up of the vehicle, the brake pedal would intermittently depress to the floorboard without warning. Additionally, there was an abnormal high-pitched sound coming from the brake booster. The contact had initially taken the vehicle to the dealer where he was informed that no fault had been found with his brakes upon inspection. As the intermittent failure persisted, the contact then took the vehicle to an independent mechanic where he was informed that the vehicle was placed under recall for the brake booster. The vehicle was taken back to the dealer where he was informed that the vehicle no longer qualified for the 10 years/100,000-mile recall repair. The manufacturer was also notified of the failure and referred him to the NHTSA for assistance. The vehicle was not repaired. The failure mileage was approximately 63,000.

- Lewis Center, OH, USA