Downshift or exhaust brake?
I was just thinking after reading a post about gas vs diesel trucks where somebody mentioned they liked diesel because of the exhaust brake. I've never had a diesel, always gas. If I come up to a long...
Forum Discussion
JIMNLIN wrote:
I don't know about the 6.7 Cummins but my '03 5.9 HO HPCR engine Nv5600 tranny with a 11200 lb 5er or a 16k GN stock trailer going down steep grades with the Cummins at 2800-3000 rpm at 55 mph without the Jacobs EB on is like shifting to neutral down the hill. Results of doing it both ways were hot smoking brakes at the bottom of the grade (not Rocky mountains)
That is what I have been saying from the beginning of this thread!!!! If our exhaust brake on the 2001.5 stopped working, I stopped and cleaned the vacuum solenoid before continuing in our Western States mountains.
The same action would occur with the 2015 exhaust brake stopped working, that is I would get it repaired before continuing on.
I do not know if the rotating mass of the Cummins has something to do with, or if it is something else, however it is like you say(shifting to neutral).
