Engine braking on 2017 F150 5.0L
I have a 2017 F150 with the 5.0 engine. When I tow my TT in tow haul mode, it seems to me that Ford has overdone it with the engine braking. As I apply the brakes, it downshifts really hard and revs ...
Forum Discussion
Turtle n Peeps wrote:
Modern computer controlled trucks do not over rev. It's impossible because of the computer.
Anybody that is worried about over reving their "modern" truck is worrying about nothing. They need to go a rev anonymous meeting. They are held at their local race track. I haven't been to any in a long time but when I did I took my 572 to 7,000 RPM time after time. And this thing has pistons as big as a small coffee can.
Let it rev.
That's true when you're stomping on the go pedal, but is it when you are being pushed down a grade by a big trailer with your foot off the gas?
When you're being pushed you can cut the ignition all you want and it's not going to limit anything. The only thing that will bring RPMs down is an upshift, and I don't know of anyone who has let their rig go that far to see what would happen.
For science, I've let my 8.1L/Allison go to 5000 before I hit the brakes, and there was no indication of it upshifting or doing anything but dropping another gear in a futile attempt to maintain speed by engine alone.
