This is a video to show how I made the brake light switch work properly on a 1993 Ford F-350. This same switch is used in many millions of Ford vehicles. It is a poor design because there is no adjustment for it. There are many parts that have to be made just right for it to work. I first realized that there was a problem when I stepped on the brake pedal to disengage the cruse control and the truck accelerated. This was because the switch would not change state until after there was hydraulic pressure built up and the brakes were slowing the truck down. This is also dangerous because the brake lights would not turn on until after the truck was slowing down.
I can't imagine that mine is the only Ford with this problem.
It is an adjunct to my post at
www.ford-truck...
10 сен 2024