While driving at highway speeds for about 30 minutes, temperature gauge slowly rises to overheating. Slowing down for 5 minutes causes temperature to drop QUICKLY. Fluid is full. No air in system. Pressurized when hot. Water pump was changed previously and probably the thermostat. This started when weather got cold. Have seen fog on windshield from hot air under hood when its showing hot.
Friday, November 16th, 2012 AT 2:43 PM