Sunday, February 24th, 2013 AT 10:58 PM
My caravan runs fine and the engine temperature gauge stays right about in the middle. When I turn the heater off, the temperature goes up to about 3/4 on the gauge. I can hear the fan running, but it stays around there. When I turn the heater back on and put the blower speed up to about 3, the gauge jumps back down to 1/2 mark. I have a new thermostat in the engine, and sometimes when the engine temp goes up, the oil light with a few warning chimes goes on for a second, and then stops. I am wondering if the problem is a sensor. I am losing absolutely no oil or antifreeze, have no visible leaks, and after 2 minutes if the engine is of, I can run it again and it goes right back to the 1/2 mark. This seems to happen more when I am doing 55 and then coming to a slower speed or a stop. Could it be a sensor?