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Ever since the Y78 recall was completed in 2023, the exhaust brake does not slow the truck down while in cruise control. This applies to either Full exhaust or Auto Exhaust brake. I have been back to the dealer 4-6 times and reflashes done etc to no avail. Prior to the Y78 recall, it would...

I am very happy to have had my injector pump replaced recently. However after the replacement, my exhaust brake does not function while cruise control is activated. (It is in Tow haul and tried it both in full exhaust brake and auto exhaust brake) Two others on this board are having issues with...

I have owned a 97, 2000, 2005, 2012, 2x2013, 1-2016,and now a 2020. This 2020 is by far the best of all...My only issue is the CP4. 2021 will not have that egg shell to worry about. Looking forward to more info on these trucks.