Sorry for the delay. Drove into town to try to find a similar car to take pictures. The best I can do is to describe what to look for. How did you check the thermostat? Since you know where the housing is located, look on or around it for anything that is threaded into it. Sensors with electrical connectors or vacuum hoses will do. Often there will be unused holes that are plugged with a threaded insert. Most commonly a six-sided Allen wrench is needed to unscrew them. What you are really hoping to find is a bleeder screw. It is hollow and about a half inch in diameter. The hole in the center is about 1/8 inch, and it typically takes around a 5/16" to 3/8" wrench. A 10 mm is common too. You don't have to remove a bleeder screw, just turn it counter-clockwise a turn or two until coolant starts coming out. It may be necessary to add coolant to the radiator to force the air out through the bleeder screw or whatever item you found to remove.
An air pocket will prevent coolant from circulating so the heater may not work. Don't worry about your heater yet until the overheating issue is resolved. I think you'll find you don't really have a heater problem.
Wednesday, July 21st, 2010 AT 12:55 AM