Without knowing for sure, the only choice is to have the coolant temp tested by a mechanic. However, before you do that, craw under the dash and see if you can identify where the clicking sound is coming from. It may be a stuck vent door that isn't opening or closing causing the heat problem. If that doesn't work or you can't find a problem, have the temp checked. Your mechanic will have a thermometer that can read high temps and it's kust a matter of removing the rad cap, placing the thermomter in the rad and allowing the car to warm up.
Let me know what you find.
Saturday, December 6th, 2008 AT 2:05 PM