02-12-2013, 01:14 PM
those valves are 2 out and 2 return lines for the hotwater heater heat exchanger, the bay hot water radiators for heat, the one at least on mine that is under the bed and the dash heater. one set goes likely to just the hot water heater and the other set to all the other things.
good way to find out if the leak is forward of the engine, but if you want any of those things to work, then you will want to turn them back on.
tom
good way to find out if the leak is forward of the engine, but if you want any of those things to work, then you will want to turn them back on.
tom
2002 45'8" Newell Coach 608 Series 60 DDEC4/Allison World 6 Speed HD4000MH