It does this through changing resistance and sends this information to the onboard computer.
NGK NTK Coolant Temperature Sensor for 1991-1997 Geo Tracker 1.6L L4 Engine qs
Engine Coolant Temperature Sensor SMP For 1991-1995, 1997 Jeep Wrangler
Crown 53005056 Coolant Temperature Sensor for 1987-1991 Jeep Wrangler YJ
4 Seasons Engine Coolant Temperature Sensor For 1991-2002 Saturn SL2
For 1990-1993 Volvo 240 Engine Coolant Temperature Sensor SMP 1990 1991 1992
For 1991-1995 Toyota MR2 Engine Coolant Temperature Sensor 4 Seasons 1992 1993
