PL720 4WD L4-2389cc 2.4L SOHC (Z24) (1983)
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Multi-Function Thermal Sensor / Switch: Testing and Inspection
1.
Remove thermo switch.
2.
Dip temperature sensor of switch in cold water.
3.
Slowly raise water temperature, ensuring that switch shows continuity below 31-35 degrees F and does not show continuity above 38-42 degrees F.