2017 KW t680 isx15 cm2350 460k miles
Sitting idling with the tractor brakes set and out of nowhere the speedometer shoots up to 10-15 mph then back down. Error warning pops up on the dash that says "Warning: air brakes in engage while driving" or something along those lines and the transmission says there is a fault. It kicks me onto drive line and ruins a reset when it happens. Any ideas what it might be?
Truck speedometer shoots up while idling and puts ELD into drive line
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by RunningAces, Jun 11, 2021.