Manuals through 2025 now available!
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LEMON is the spiritual successor to CHARM, I recommend you try it!
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Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
SENSOR INSPECTION 1.
Remove the engine coolant temperature sensor from the intake manifold.
2.
With the temperature sensing portion of the engine coolant temperature sensor immersed in hot water, check resistance.
3.
If the resistance deviates from the standard value greatly, replace the sensor.