Diagnosing a Bad Coolant Temperature Sensor
I've reviewed a bunch of threads on idle and starting issues and found that for some folks replacing the CTS is the answer, for others, no. But I haven't found any info on actually diagnosing a bad CTS as opposed to shelling out the bucks to replace and hope it does the trick. Is an ohmmeter check a reliable indicator, or are there other issues that a simple resistance check won't reveal? If an ohmmeter check is reliable, where can I find a temperature/resistance chart so as to make an inform
Haynes:
Temp in °F Resistance (ohms)
212 ----------176
194 ----------240
176 ----------332
158 ----------458
140 ----------668
112 ----------972
122 ----------1182
104 ----------1458
95 -----------1800
86 -----------2238
76 -----------2795
68 -----------3520
58 -----------4450
50 -----------5670
40 -----------7280
32 -----------9420