plymouth Workshop Repair Guides

Plymouth Workshop Service and Repair Manuals

Sensors and Switches - Cruise Control > < Radiator Cooling Fan Temperature Sensor / Switch|Harness
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Radiator Cooling Fan Temperature Sensor / Switch: Testing and Inspection
Thermo Sensor

Fig. 47  Coolant Temperature Switch Check

1.

Remove engine coolant temperature switch from radiator, then immerse switch in warm water or oil.

2.

Connect a suitable ohmmeter across switch, as water or oil is heated the switch should close at approximately 185 degrees F and as water or oil
cools the switch should open at approximately 171 degrees F.  

3.

If not within specifications, replace coolant temperature switch.

Sensors and Switches - Cruise Control > < Radiator Cooling Fan Temperature Sensor / Switch|Harness