cooling fans not operating engin overheating
1. Check the thermoswitch for continuity when the engine is just above normal operating temperature (probe the connector on the thermoswitch and the engine block itself). If continuity is not present, the thermoswitch is bad and must be replaced. 2. If the thermoswitch is good, check the underhood relay by switching it for one like it (possibly for the clutch interlock). If the cooling fans now work (or, if you used the clutch interlock relay and now the car won't start) then replace the fan relay. 3. If both the thermoswitch and relay are good, replace the radiator fan itself.
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