One problem related to brake sensor has been reported for the 2005 Ford F-150. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Ford F-150 based on all problems reported for the 2005 F-150.
I was in an accident due to brake failure. I was traveling at approximately 25 mph and approaching a stop light in moderate traffic. I had 80 ft to the vehicle in front of me and when I depressed my brake pedal it went 3/4 of the way to the floor and was vibrating as anti lock was engaged. I rapidly depressed the pedal again and the same occurred. On the third attempt the brakes finally engaged but was to late to stop the vehicle as I was only 2 feet from the car in front of me resulting in a crash. My speed was reduced to 8-10mph upon impact. The smaller car in front of me was knocked into a third car stopped at the light. Damage occurred to the truck and the smaller car and very minor damage to the 3rd vehicle. The weather was sunny and the streets were completely dry. I could not get my vehicle stopped even with no load other than my passenger who is a witness to the incident. No injuries occurred in any of the three vehicles and no airbags were deployed. I am scared to death as I have owned the truck for 2 years and never had this happen in my life. The brakes worked perfectly immediately following the incident and the truck was taken to the Ford dealer where purchased new and all service records are at this dealer. They thoroughly inspected the entire system and found no issues. System check on all sensors,lines, rotors and pads were ok. Perfect working order ?.