Exhaust brake not working
Cummins 400 isl 2006 travel supreme. About 90,000 miles. Need some help! Thanks
Forum Discussion
As I posted above, one of the first things to check when the exhaust brake does not engage/transmission begin downshifting toward the "preselect gear", is the THROTTLE POSITION SENSOR.
If the sensor does not send the "throttle is closed" signal, the exhaust brake should not come on.
If you are not familiar with this, take it to someone who is. Having the wiring diagram for your system will save you time and $$$.
If the sensor does not send the "throttle is closed" signal, the exhaust brake should not come on.
If you are not familiar with this, take it to someone who is. Having the wiring diagram for your system will save you time and $$$.
