How does the Jacobs Extarder work?
My m/h is a 1994 Allegro Bus, 5.9B 230 hp (mechanical engine) Cummins DP. It is equipped with a Jacobs Extarder. From what I understand, to stop confusion in what it's called, it is now just called ...
Forum Discussion
Is your cruise control engaged? Mine dose not activate with it on, you actually have to tap the brake to disengage the cruise, the it goes to work.
