Three problems related to brake master cylinder have been reported for the 2005 Ford F-350. The most recently reported issues are listed below.
The contact owns a 2005 Ford F-350 sd. The contact stated the bolt on the master cylinder for the brakes sheared off. While driving 5 mph while the brake was being depressed the brake extended to the floor causing the vehicle to be stopped with the emergency brake. The contact inspected the brake and noticed the bolt from the master cylinder broke. The dealer was notified and stated they were aware of the failure. The manufacturer was notified and stated they were not aware of the failure and offered no assistance. The vehicle was not repaired. The failure mileage was 190,000.
While vehicle was parked in my driveway, level ground, pushed on brake pedal to put vehicle in gear. Brake pedal felt spongy, pushed on it again, bang, right to the floor. There the pedal stuck, up against the floorboard. Upon investigation, found that the portion of the master cylinder that the plunger bolts onto, broke away. The plunger bolts to the master cylinder in two places. Both bolt holes broke away from the casting. The casting looks faulty, no fresh break look to it at all. The vehicle has 43000 miles on it. Brakes have not been done yet, still roughly 50% pad wear. More of a daily driver unit, than a heavy puller. I'm just glad that I wasn't driving down the highway or pulling my holiday trailer, when this occured. Who knows what would have happened! I feel this is a major safety issue. Is it a rare case or are there other faulty master cylinders out there. Someone better look into this before there are accidents or even casulties.
The vehicle is a 2005 Ford f350. The brakes failed multiple times. Once when the consumer was driving she went to slow down at a traffic light and the vehicle would not stop. The consumer said that the only way she could keep from hitting another vehicle was to honk the horn. The vehicle has been in the dealership 10 times, and the dealership replaced the master cylinder 3 times. The consumer stated that since she has owned the vehicle it has been in the repair shop at least 25 days. The dealership has tried to assist her. She felt that there was some kind of problem with the electrical system. The problems occurred off and on. When she contacted the manufacturer, they gave her a hard time. They have not helped her at all. They told the dealer that they would not buy back the vehicle. The consumer used the vehicle for business, and because of the brake problem it has caused her to lose a lot of business. She kept leaving the vehicle at the dealer, and could not use it for days at a time. Also, there were other problems with the vehicle.