Five problems related to engine and engine cooling have been reported for the 2016 Ford Flex. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2016 Ford Flex based on all problems reported for the 2016 Flex.
I am getting a "transmission not in park" error that will also sometimes flash "door ajar" while driving. Door appears to be closed - not sure if it's latched, transmission is obviously not in park because the car is moving. I'm concerned that this shouldn't be driven and is a safety issue.
The car kept misfiring and it completely stoped on me 2 times in the street it also overheated due to the cooling system.
The contact owns a 2016 Ford Flex. The contact stated that upon starting the vehicle, the check coolant warning light was illuminated. The vehicle was taken to a local dealer where the vehicle was diagnosed, and the contact was advised that the engine had experienced coolant intrusion and that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 163,000.
There is far to much to list.
Ford hid the fact that some of its vehicles may suffer a sudden internal water pump failure that poses significant safety risks to drivers including sudden catastrophic engine failure. From 2007 through at least 2020, Ford has incorporated the cyclone engine—containing a faulty internal water pump—into thousands of vehicles. Internal water pumps should last for the useful life of the engines without the need for any service, maintenance, or repair. Despite knowing for more than a decade that its' vehicles incorporating the "duratec engine", contain a defect in design that can cause the internal water pump to prematurely fail well before the end of the useful life of the engine. The issue has lead to a repair estimate of $2700 usd or could lead to catastrophic engine failure due to the water pumps' placement inside the engine block (poor design). In the past, Ford has also represented that the water pump will not need to be serviced or maintenance, but the internal location of the water pump in the engine conceals it from view and inspection when other routine services are being performed. The water pump is in line with the crankshaft and located over the main body of the engine, it reportedly allows coolant to leak from the water pump into the oil pan. Making matters worse, mixed coolant and oil can lead to engine failure, too.
| Engine And Engine Cooling problems | |
| Coolant Leaking problems | |
| Engine Failure problems | |
| Manifold/header/muffler/tail Pipe problems |