Mechanics

ENGINE COOLING FAN

1999 Oldsmobile Cutlass

Engine Cooling problem
1999 Oldsmobile Cutlass 6 cyl Front Wheel Drive Automatic 135000 miles

the fan does not kick on when it suppose to at all. The only way it will turn on is when I unplug the thermostat sensor.
i replace all the relays and the thermostat sensor and tested the fan motors.
what should I do?
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Richard findley
April 23, 2010.




Check the PCM. The temp sensor sends a signal to it and then it goes to the relay and to the fan. Also, make sure there are no damaged wires.

Let me know what you find.



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