2007 Saturn Relay car overheats and shuts off

First, disconnect the negative battery cable.
Next, drain the engine cooling system.
Relieve the belt tension at the tensioner and remove the accessory drive belt.
Remove the water pump pulley.
Remove the water pump mounting bolts.
Once the bolts are removed, the pump will come off.

Reverse sequence to replace.

As far as the thermostat, if you follow the upper radiator hose back to the engine, it will attach to the thermostat housing. Once the coolant is drained, remove the hose then unbolt the housing. Once the bolts are removed, the housing will come off and the thermostat will be under it. Make sure to pay attention to the positioning of the thermostat so you replace the new one the same way.

I have a question, are you sure the water pump is bad? I ask because it is hard to access it due to space limitations. Let me know why you feel it is bad. Also, the engine size is either a 3.5 or a 3.9. If you have other specific questions, let me know which one you have. There is no 3.8L in this vehicle.

I'm sorry, but I am unable to copy and paste schematics. First, make sure there are no blown fuses. If they are good, run a jumper wire directly to the fan from the battery to see if the fan motor is good, If it is, most likely, the coolant temp sensor is bad or you have a bad fan relay.

The coolant temp sensor is near the thermostat housing. As far as the relay, there is a relay box under the hood where it can be found.

Are you sure the fan motor is good?