How to Replace a thermostat on a GM 3.1L or 3.4L automobile

Replace the thermostat on your GM 3100 or 3400 vehicle with this nifty tutorial. The video shows you how to replace a thermostat on a 3.4L GM but it should also help you repair a 3.1L GM as well. Just a heads up - you'll need to replace an o-ring when you install the new thermostat as well.