How hard is it to replace a thermostat

Hello, It is not difficult at all, and that is what concerns me. If you are having doubts as to whether or not you can replace the thermostat, it is best to allow a professional to handle it or have a friend help. Make sure you follow the procedures from the service manual, and everything should go fine. However, there is a little assumed knowledge and skill involved in working on any part of a vehicle, so don't attempt it if you are not confident in your abilities.