Two 10mm bolts hold it onto the block and an o-ring gasket seals it. It is built in to the neck where the lower radiator hose meets the engine block. If you are standing in front of the car look to the left of the fan and follow the large hose to where it connects to the engine. You can leave the hose connected to the neck and just pull the whole thing out of the way (being careful) and the thermostat sits in place where the neck joins the block. If you live where it does not "hard freeze" just remove it and toss away. It's only purpose in life is to not open until the engine is warm, allowing cool water to enter the engine block from the radiator. You don't need it unless you live north of the Mason-Dixon line. :-) Be aware you Will have some water loss as you open those bolts. This is normal. Just refill when you're done.
NOT AT ALL
Rotate the drivebelt tensioner to release the tension on the belt and remove.
Yes, all of the Saturn's were equipped with Electronic Fuel Injection.
Below the water pump on the front left side of the car.
If it is an SC2 the lights have to be flipped up and you have to have a torque screwdriver to get the light out. Be careful not to take out the WRONG screws.
no, thermostat is behind the lower radiator hose(where it hooks into the engine) there are 2 10mm bolts holding the housing in (where the hose connects) the thermostat is behind there
Listed on the driver's door post.
see link below
need to change more often
The same way you do with any other car.
how to use bcm to reset change oil light