its the zetec. thermostat is new, which doesnt really mean that it couldnt be stuck. i had planned on replacing the coolant sensors, but never did. but it just sits low then all of the sudden jumps halfway then slowly climbs to were the fan kicks in, like 220 is it on these? with the way the gauge climbs and drops, im just thinking its one of the sensors.
but im hoping its just the gauge sensor and reason for poor performance is just one of those things where one day its good and other day its bad.
