Ford Flex owners have reported 1 problem related to engine head gasket failure (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Ford Flex based on all problems reported for the Flex.
Total motor failure when driving! transmission frequently slips. Motor had to be replaced. When pressure exhaust for ecoboost is redirected to cylinder 3 and 5 the head gasket fails allowing water to enter the head of motor which them steam fries the cylinders. This is very common in the 2010 Flex with ecbiost and need to be recalled ASAP! motors up to 100,000. Mine had 74000 when failure occurred.
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