Table 1 shows one common air brake related problems of the 2004 Ford Expedition.
| Problem Category | Number of Problems |
|---|---|
| Air Brake Antilock problems |
On Sunday, 3/14/2004, I was driving my 2004 Ford Expedition on dry pavement when the vehicle began to shake with acceleration (15-20 mph). I checked to be sure there were no flat tires and proceeded. Once the vehicle was upto 45-50 mph I attempted to brake and the vehicle's brakes did not properly respond. The brake pedal began to vibrate and shake but the vehicle did not slow down. I applied the brakes harded and the vehicle came to a slow stop. Once the vehicle stopped a warning buzzer sounded and the vehicles message center stated "check advtrac". The advtrac feature disabled and I was able to drive the vehicle home safely. The next day, (today 3/15/04), I drove the vehicle to the Ford dealership without event. The dealership nad no idea what the problem was but stated they would contact Ford and let me know. This event took place on a clear paved dry flat road. Fortunately, there were no other cars in my path of travel. Had there been, a collision would have occured due to the failure of the braking system. The vehicle has 2014 miles and the VIN is 1fmfu18l24la81246. The vehicle was being operated in the "2high" mode. This is a serious system failure related directly to the advtrac system.