The fan should spin very easily with a flick of your finger tip.
The fan is close to the radiator, but shouldn't rub against the radiator.
If there is no obstruction, and the fan is difficult to turn, then the fan motor bearings are shot. Time to replace the motor.
You'll need to drain the coolant and remove the radiator as the fan and it's mount are bolted to the radiator.
Once you've removed the radiator, then it's easy to swap out the motor.
The SP1's only have one fan, and it's directly controlled by the fan switch which is mounted into the left radiator. Very simple.
The SP2's have two fans, and are controlled by a temperature sensor and the ECU which signals the fan relay to activate the fans. More complicated.
To check the SP1 fan motor:
1) With no blown fuse and engine at operating temperature, pull the connector from the fan motor switch mounted into the left radiator, then ground the connector. The fan should run.
2) If the fan still won't run, measure the voltage at the black/blue and green wires on the 2-pole fan motor connector just below the fan switch. You should read battery voltage.
- If there is battery voltage, the fan motor is bad.
- If there is no battery voltage, then check for blown fuse or open circuit in the wiring.
Last edited by SubSailor; 08-24-2010 at 11:18 PM.