Buick 12365300 Fan Kit,Engine Coolant

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To test the radiator fan motor, unplug the electrical connector at the motor and use jumper wires to connect the fan directly to the battery. If the fan still doesn't work, replace the motor. If the motor tested OK, the fault lies in the coolant temperature switch, the relay, or the wiring which connects the components. Carefully check all wiring and connections. If no obvious problems are found, further diagnosis should be done by a dealer service department or a repair shop. To replace the radiator fan, disconnect the negative battery cable. Remove the air cleaner assembly and the engine torque struts. On 2002 models, partially drain the cooling system and disconnect the upper radiator hose from the radiator. Insert a small screwdriver into the connector to lift the lock tab and unplug the fan wire harness. Unbolt the fan assembly and carefully lift it out of the engine compartment. To detach the fan from the motor, remove the motor shaft nut. Note that this nut may have left-hand threads. Check the hub of the fan for marks that may indicate which way to loosen the nut. To remove the fan motor from the bracket, remove the mounting bolts/nuts. Installation is the reverse of removal.

To remove the front cooling fan on Eldorado and Seville models, disconnect the negative battery cable, remove the radiator cover panel, detach the electrical connector.