Engine Shut Off Without Warning problems of the 2012 Ford F-150

When driving in humid or when moisture is present such as rain or mist the engine shudder, shakes, misses and even shuts down when quickly accelerating. I have had the engine completely loose power when merging onto freeway in heavy traffic. I took it to the dealer once when it was under warranty. They said the catalytic converter needed replaced. Of course I didn't drive in humid or raining environment conditions again until the warranty ran out. I have experienced the engine shut down at least 4 times since I bought the vehicle new. Almost crashed twice when passing or merging when engine shut down. The date entered below was the last time the problem occurred. First time was March 2013 when vehicle had about 16,000 miles.

Engine shut off completely a big wrench came up on the screen where the mpg and stuff are almost got rear ended due to rush hour traffic.

Driving at 5 mph raining out and engine shut off for about 10 sec. Now engine hesitation when passing or just taking off.

V6 ecoboost engine went into limp home mode while attempting to pass. Unexpected failure of engine caused loss of power and would not travel faster than 10 miles per hour. Unexpected situation occurrance is extremely dangerous and occurred at highway speed of 55 mph. Ford dealership has technical service bulletin on problem but Ford does not have parts available to fix with backorder of parts projected to be 2 months. Ford dealer indicated problem occures because moisture builds up in air intake cowl and when turbo intercooler senses the moisture engine shuts down. This is a serious problem requireing a better response by Ford motor CO.

2012 Ford F-150. Consumer writes in regards to acceleration problems. The consumer stated as he tried to merge into traffic on the interstate, he floored the accelerator pedal, but the engine shut down completely. He was able to get the truck off the main interstate and into the emergency lane. The engine light came on. He let the truck sit in the off position for approximately 10 minutes and then he re-started the truck. At that point, he was slowly able to accelerate while in the emergency lane, to a speed that allowed him to re-enter the interstate. All attempts to accelerate quickly failed and it would only accelerate gradually at slower then normal speeds. He continued his trip with the engine light on and at his first opportunity he took the vehicle to the dealer. The dealer returned the vehicle to the consumer saying they had fixed the problem. The truck performed well for the next year without any incidents, there were no occasions where quick acceleration was required. In October 2013, he made another trip, and the same incident happened. Then engine shut down again in December 2013. The dealer stated they made a different repair and they returned the truck to the consumer. The engine shut down again in April 2014. The dealer kept the vehicle, for two weeks, stating they were unable to find a problem.