Exhaust brake not working
Cummins 400 isl 2006 travel supreme. About 90,000 miles. Need some help! Thanks
Forum Discussion
wolfe10 wrote:
And, very easy to verify if any type of engine brake is working: Use transmission down arrow to select a gear where you are close to the upper end of the RPM range. Turn engine brake on/off/on. Since the transmission is now a constant, easy to see if you have added braking HP.
Brett, thanks for that suggestion. Never thought of that.
Larry
