Originally Posted by teamarmstrong
I have almost the exact same setup as you and the same issues. I wonder if there might be something with the f-150's integrated brake controller. I cannot get mine to lock up either and was told by the dealer that it should. I have thought about crawling under the trailer and trying to adjust the brakes there to see if it helps.
First, welcome to the forum.
My integrated brake controller did
lock up brakes on Jayco trailers I was delivering years ago. If I braked hard, 1 of the 4 would lock up, not all 4. Then I'd set the controller lower so I wouldn't repeatedly lock that tire and damage it.
I haven't had a brake lock up on my trailer yet, although I feel they are braking heavily; especially when applied manually. I don't have a clue as to why the difference between then and now. It is unlikely it is my truck.
Actually, until now, I never heard that trailer brakes should
lock up. I've always preferred that brakes NOT lock up.