LarryDel wrote:
I did not try the applying the brakes manually with the brake controller. No need to as we were only going 45 miles per hour on a flat surface and the truck breaks were enough to bring us to a safe stop, although I had to put my foot all the way to the floor. I did not try increasing the gain as it was set at 2.0 which is more than enough to work. Again, what caused my truck brakes to fail? My truck brakes work fine as soon as I disconnect the trailer. Never had this problem before in 10 years of towing.
This is one of the most contradictory statements I've read in a while.
Although it appears that whatever happened on that flat road in Delaware could forever remain a mystery.
I cannot begin to even surmise, after 30 + years of driving more, towing more and working on more vehicles than most people, how that particular sequence of events would happen and then correct itself immediately.
Although you may be saying that the truck brakes still "don't work" when the trailer is plugged in....