Tom, that makes sense. I shut off the valves connected to the pump you referred to thinking that was for the water heater. It makes more sense for that line to have a pump to reach the front. I'll close those and open the other set and then drive it to see what happens.
Oh, does anyone know how the engine preheat works? When I switch it on (in the overhead cabinet with generator controls, etc.) the preheat light comes on. Does this work through the water heater or is it an electric block heater? I do have a pamphlet from Kim HotStart(?) and there is a cable marked Kim plugged into a receptable on the right side of engine bay.
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