Having a problem with my 2010 F-150 King Ranch. Randomly when turning left, it feels like the left front brake is engaging and it sounds like your anti-lock brakes when you come to a stop on slush or snow. The truck slows with your foot still on the gas, Saturday it came to a complete stop before it released. I have had it to 2 Ford dealerships, the first could not get the symptom to occur on a test drive and told me there was nothing they could do because they did not hnow what to look at. The dealer I bought it from got it to act up, replaced the IWE 2 weeks ago and 3 days later was still doing same thing. My wife dropped the truck at the dealer again Weds.morning, she told them it did it on the way there. I called at 4:30 to check and they said they drove it 2 times and it did not act up. I was told they can not seek help from Ford Tech Support unless the symptom is presenting itself, the truck is still there. I just put a pile of money into it to prep it to tow a new travel trailer, now I can't even attempt to for fear it will jackknife when it grabs.

 

Did they replace the IWE actuators or solenoid? My guess would be they replace the solenoid and it's the actuator that is bad. It could also be the vacuum hose that goes to the actuator. I had issues with my 2012 and ended up putting a complete kit, both actuators, solenoid and vacuum lines.

If it is the actuators the truck shouldn't make that noise when you are in 4WD. It might make other noises if you are on a hard surface making a tight turn.

 

Sounds like the traction/roll stability control acting up or getting a bad signal from a wheel sensor.

Just guessing, but it would be something to have them check.