Where is the coolant temperature sensor located ...

check Answers.com they will tell you where it is faster than I can Good luck

join the wires on the sensor and see if the fan comes on

how about the coolant temp sensor, they had alot of problems with that sensor and also the plug for it,some have two of these sensors side by side, one for the gauge and the other for the fan, i would replace these first and go from ther good luck,

It is located on the transmission side that faces the front of the car. It's just left and below the transmission spin on filter. It's the same sensor for the Engine Coolant Temp sensor and the Intake Air Temp sensor.

It sounds as if you may have an air pocket in the system, alot of your saturn and gm vehicles have air bleed on or near the thermostat housing. As you are filling the system you will need to have this bleeder open until a steady stream of coolant comes out.

You should take the car to a local auto parts store and have them clear the codes. Some cars continue to show the error until you reset the system.

the sensor for the coolant level should be attached right to the overflow tank... there should be a harness with wires coming out of the tank

there is a sensor on the driver's side of the head (temp) and a level sensor in the bottom of the coolant jug.

The coolant temp sensor is on the driver's side of the engine in the head. If you remove the lid to the airbox and lift the intake tube, you will be able to reach it easily. To remove the connector, you just squeeze it. Then use a socket or a wrench to remove the coolant temp sensor. You will lose some coolant so be ready with the new one or drain the antifreeze before you start.