Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
The fans don't seem to be working at all right? Not even with the AC on? Turning the AC on on this car is supposed to make the fans run regardless of engine temperature.
In that case the problem is either in the sensor that tells the cooling fans when to turn on (engine coolant temperature sensor) or there is a restriction in the cooling system that is not allowing the hot coolant to reach the temp sensor. That could be a stuck closed thermostat, a bad water pump, or an air pocket in the cooling system. Have you checked the coolant level recently?
You might check the OXY PST fuse as well. Sometimes it will blow and affect the fan operation. It is located in the under-hood fuse box.
Please let me know if you need additional info.
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