Originally Posted by 07lilredwagon
it does not look very hard to replace the sensor....just unclip the lead (***after the engine has cooled, of course), unscrew the sensor and install a new one. They say use a new copper gasket too...sometimes just disconnecting the clip, checking that the contacts are clean and reinstalling the clip can get a sensor working again, but its a long shot.
guys, will any coolant leak out when the sensor is unscrewed?
Yes. It is near the bottom of the cooling system. You'll need to drain the system first, or you'll make a mess.