[77newell]

My dash heat has been lousy since I've had the coach. Forest reported that it was inadequate when he had it so this is a long term problem. I recently noticed that the heat is much hotter when sitting at a traffic signal and seems to diminish quickly when we start moving. I'm wondering if my boost pump and the engine pump are fighting each other. I have 4 shutoff valves, two for supply and two for return. I'm wondering if someone that has the 8V92 engine on a coach that heats really well going down the road would take a look at their coach and tell me the location of the valve that is connected to the inlet of the boost pump.