Forum Discussion
4x4ord
Nov 28, 2021Explorer III
Cummins12V98 wrote:
It did not down shift into 4th I just let it do it’s thing. Next time I will lock out 5-6 and see what happens.
Using cc it applies more back pressure the lower I set cc to a point. Seems like I am hitting around 170-180 back pressure hp.
170-180 reverse hp sounds like the right number to maintain 55 mph on a 5-6% grade with 35,000 gross combined weight. I think the Ram exhaust brake should be able to create that amount of braking without using wheel brakes. The advantage of using the Auto setting rather than CC is that "Auto" just works ... ie you don't really have to do any thinking about it. If you're going too fast you simply brake a bit to slow down, or, if you want to pick up your speed a little you step on the throttle a bit to get to the speed you want. If you want "auto" to help slow you down, as soon as you touch the brakes the EB goes into full on mode until you release the brake pedal. I think after you use the auto EB setting a bit you might get to like it better than CC.
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