Buick Repair Questions? Ask a Mechanic for Answers ASAP
Hello. My name is ***** ***** I will be assisting you today. The best way to flush the radiator, in my opinion, is the remove the upper and lower radiator hoses and flush water through. For $500 I'm sure you could have the radiator replaced and the system flushed. The best way to test the thermostat is to remove is from the vehicle, place it in some water and warm the water up to the rated temperature. Although, once you have it out, it's best to replace it since it's relatively inexpensive. Give me a few moments to pull up some information on this subject.