Q&A

 Master

Also replace the radiator cap if the smaller of ther two valves in the radiator cap sticks the sytsem can not recover coolant from the expansion tank and collapses the hose. There is a company that independent auto repair shops "buy" their information from that offer a very reasonable service to do it yourselvers. You can get a one week subrcription or year subscription very cheap. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... great quality information same as the professionals have ,much better than generic workshop manuals from parts stores, much cheaper than the factory manual try http://www.eautorepair.net/Marketing/Default.asp?VID=125669 and get an online repair manual subscription.
Thermostat replacement will take less than 1 hour on that engine.