AF990 on F350 CC SRW
OK, so I've spent gobs of time reading about weights and trucks and what to do and what not to do. I've noticed many DRW owners have 9 foot campers and many have 11-12 footers, I've witnessed a Dodge...
Forum Discussion
Bedlam wrote:Grit dog wrote:
6.4 doesn't have an exhaust brake in OE configuration. You need a programmer to activate the turbo vanes for braking.
If they did, there wouldn't be programmers to activate it.
The tuners change the behavior of the VGT but exhaust braking through the turbo does happen. Ford chose to hide what was happening and when in their setup, so there is confusion. VGT exhaust braking started in the previous generation and is only active in tow/haul mode with no way manually just turn EB on or off. Having a tuner allows more control of the VGT regardless if the transmission is in tow/haul or not.
Emacvay, I stand corrected. Mustn't be a very aggressive profile in OE config, as the ones I've driven I couldn't feel (or hear) it.
That makes sense, and hidden is the right word, as Ford never marketed that capability either that I'm aware of.
Learn somethin new every day!
