Two problems related to brake master cylinder have been reported for the 2003 Ford Expedition. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Ford Expedition based on all problems reported for the 2003 Expedition.
Driving south on rt 202 in left lane at 35 mph /a car in right lane changed lanes to the left in front of car in front of me to get to an exit. The car in front of me applied brakes / I pressed brakes hard to avoid rear end collision. . Abs system locked brakes but pedal went to floor. After that brakes felt soft when applied. . Found leak in rusted lines from master cylinder to booster.
While backing out of the garage my brake pedal went to the floor. A new master cylinder and brake booster were replaced at 5,000 miles(5-21-2003). At 15,000 miles my brake pedal went to the floor again, it was towed to the dealer where I was told this is normal and it was just the brake system checking itself. I will be buying a new car and you can be sure it will not be a Ford!!!!!!!!!!!!!!!!!.