Engine fan
I have a 2006 Monaco with a 8.8L 400HP Cummins side radiator . Recently I noticed the engine fan is running full speed all the time . I know the fan is driven hydraulically and I think it thermostatic...
Forum Discussion
Your coach may have the Sauer-Danfoss fan controller which reads info from several sensors (3 I believe) to control the fan. If the controller fails, it generally defaults to high speed.
Or you may have another set up. My 2007 425 HP ISL uses info from the engine ECM to control a little solenoid mounted on the hydraulic fan motor to control fan speed.
Or you may have another set up. My 2007 425 HP ISL uses info from the engine ECM to control a little solenoid mounted on the hydraulic fan motor to control fan speed.
