[Hocrest]

All together, maybe 30 minutes??

-Tools needed; rag, 10mm wrench, Deep 19mm socket with extension and ratchet.
-The engine should be cool, otherwise you could get a fountain of hot coolant when you remove the sensor.
-Disconnect the negative terminal of the battery.
-Remove the engine cover, it's only two screws (if their still there)
-Disconnect the reddish brown wiring harness going to the CTS.
-Use a deep 19mm socket and extension to remove the CTS. There will be a little coolant that comes out, use a rag to soak it up. If you have the new sensor ready to go back in quick, you'll lose less coolant.
-Install the new CTS with a new copper washer and reconnect the harness.
-If it hasn't been 30 minutes wait to reconnect the battery, you should leave it disconnected for 30 minutes to reset the ECU.

That's it, pretty simple.