Good afternoon everyone, I apologize if this has been asked but I have a 2015 F150 that when I park at work almost every single time when I go to get lunch, and when I leave for the day when I go to back up I get a banging noise/feeling and the truck comes to almost a complete stop. Sometimes when I try to give it more throttle it won't move or it will move very slowly and about 60% of the time I get a squealing from what I believe would be the rear brakes almost as if the calipers are sticking ever so slightly. Has anyone else had this sort of issue before and if so did you ever find a fix for it? Other than those times when at work I do not believe I had ever had that happen anywhere else. I back in to my driveway every day and use the parking and it doesn't do it then.

 

You have to expend a little energy to take a look at the rear brakes.
Maybe an axle seal is leaking some grease, caliper hung up, emg not releasing ect.
The truck going to 7 years old.
Good luck.

 

My 2016 is doing the exact same thing over the last 4 to six weeks. 4WD Lariat but its always in 2WD. No lift, original stock suspension. At first I thought it was only upon reverse with the wheel turned to the left. But it now happens in either direction or even sometimes straight. I SEEM to think it only does it after I've either had the car 🚘 n an incline, or when going over some bumps. Does not seem to appear when I’ve only been on smooth pavement. I’ve pulled both front wheels, inspected the front brakes, had them apart and back together, everything SEEMS to be normal. Right now I'm trying to continue replicating so i’ve got at least a better description to give to the dealership.

The only thing to add, just so all the info is there, the dealer did something after it went in for its second set of IWE under warranty last spring at 140k kms (90k miles). Something about capping the vacuum lines, and basically the front wheels would always be connected. I may have my description wrong, but whatever it was, it was the latest recommended fix from Ford for the issue. I read the TSB or whatever it was called that the dealer was going off of.