Air Brake Problems of Ford Flex

2009 Ford Flex-complete brake failure after sitting for a period of time at high-altitude. Brakes had felt spongy other times but we thought it was due to icy parking lot-as after driving a bit brakes felt ok. This time brakes failed completely resulting in property damage. Car towed to local Ford dealership -- they told us the brakes were fine and there have been no issues with brakes on the Ford Flex--which after researching we know to be false. The brakes still do not feel right upon start-up-brake pedal goes further down before stopping; we now wait a period of time before driving--we are afraid to drive car but don't have the money to purchase a different automobile-and don't want to pass a dangerous car to another family.

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2010 Ford Flex front brakes replaced twice due to grinding and wear. Back brake calipers and brakes replaced due to sticking and uneven wear on tires.

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2010 Ford Flex bad brake issue. I live at high altitude and have a Ford Flex eco boost that performed flawlessly up until about 21k mies when we had a brake failure, the brakes did not stop the car. The dealer replaced a master brake booster and since that time we intermittently get a hard brake pedal and no matter how hard you push the pedal the car will not stop. There is another person also living at the same altitude about 9,200 feet in summit county CO who had the exact same series of events although currently he is down in texas with no issues. A third person in wyoming who is about 6,000 feet is having the same problem. Ford claims there is nothing wrong with the car and have sent two engineers to look at it who have not experienced the hard pedal but the gm at the dealer has, never the less every once in a while especially when first starting out the brake pedal is hard and you have about 10% braking. My wife actually went through a red light for about 20 feet before she could finally stopped she was lucky no car was coming at the time. It only happens at high altitude apparently. Which means that people driving up into the mountains to go skiing or whatever may get an awful surprise if their brakes fail. . Read more...