I have a 2000 ford escort zx2 with the dual overhead cam engine. About a
month ago the temp. gauge started showing cold when running down the road
above 30mph. Since then I have changed antifreeze, burped the cooling
system, changed the thermostat and checked the new stat in hot water-it is
working perfect. Also the fan is not running. And the engine is still
running too cool. When sitting at an idle the engine will come up to
temperature but quickly cools down when going down the road-the heater
also starts blowing cooler air. What else should I be looking at.