If you own a vehicle in the Saturn S-series, chances are you may have run into some problems with your car. Just like with any car, there are things that need to be checked or replaced in order for them to work properly. One of those things may be the engine's coolant tempature sensor. This is an issue, especially when you're trying to make sure your car doesn't get overheated. So check out this tutorial on how to replace one today. Enjoy!