How can you fix overheating on a saturn sl 2000?

Answer 1

Overheating on any vehicle can be caused by many different problems.

It could be as simple as a sticking thermostat or a worn water pump or even a build-up of deposits inside the radiator.

Once water cooled engines have significantly overheated the heads will typically warp, causing even more problems. A warped head can allow combustion gasses into the cooling jacket of the engine, which will raise the pressure inside the cooling system and push coolant out of the engine resulting in... even more overheating.

If that's the case, the only way to repair the problem is to have the head machined and replace the head gasket.

If the overheating is caused by any of the other problems mentioned, just replace the offending part and the problem may go away.

The Saturn S series engines were quite well designed and typically perform well, unless they are allowed to overheat.