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What could cause smoke coming from the Radiator Fan?
If the smoke is coming from the electric fan itself, then it needs replacing. It could be the smoke is steam that the fan is drawing from the radiator, and you have a coolant leak at the radiator.
How does the rad fan on a 1986 Honda Prelude come on?
There is a temperature switch on the passenger side bottom of the radiator that has a wire connector attached to it. The switch screws into the radiator and then the wires connect to that. That switch is what tells the relays to turn the cooling fan on. If your fans don't turn and the engine is running hot you can test the switch using the following steps. 1. turn the ignition to the on position but don't start the engine. 2. disconnect the wire connector to the switch on the bottom of the radiator. 3. using a small jumper wire, jump the two wires inside the connector. If the fans turn on then you will need to replace the temp switch. If the fans still don't turn on then you will need to check the fuses, relays, and the fans themselves.
Where is the 89 acura cooling fan switch location?
In the radiator.
What is a thermo switch?
A thermoswitch is the device by the radiator, that switches on the fan as soon as the engine/ radiator reaches a set temperature
Why is the radiator fan spinning slow?
Manual fan bolted to the water pump, the fan blade is bad. Electric is either the fan or the sensor that provides the ground. Run a good ground to the fan and if it speeds up it is the sensor. Many engines also use a fan clutch. This fan clutch can monitor the temp of the air passing through the radiator and adjust fan speed accordingly thus saving horse power, thus saving fuel.
