I have a 2008 fleetwood Excursion with a rear radiator and a 360 hp ISC engine. There is a small leak that appears to be coming from the center of the engine below the front fly wheel or damper I thin...
Could be water pump, or could just be a loose hose clamp on heater hose or upper radiator hose. All could look from below like they came from the same place.
Find the HIGHEST point where coolant is present. That will be the source of the leak. Suspect best view will be from under the coach between CAC and engine. A strong flashlight will help.