What should the heater core inlet hose be reading?
What should the heater core inlet hose be reading? Since the coolant is running through the engine block before going into the heater core inlet hose, shouldn't it be reading at least the temp of the hose leading from the radiator to the engine block? What causes the engine temp to fluctuate? It suggests that a plugged heater hose or heater core can cause engine temp to fluctuate. Until the problem is solved, information like this could be the key to the solution. I agree, it was the fluctuating temp that caught my eye. Why does my engine temp gauge...