Mercury F87Z-18456-AA Blower Assembly

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The blower motor can be found on the right-hand side of the engine compartment. Take off the negative terminal wire from the battery. Remove the air cleaner for 1994 and earlier models. Push down on the electrical connector locking tab and disconnect that blower motor connector. Disconnect the small rubber cooling tube model without air conditioner from the blower motor. For models with air conditioning, remove a single nut from the bottom plenum. Disconnect the electrical connector from the blower motor resistor, vacuum hose from the check valve, and vacuum line from the intake manifold. Remove three screws that hold the blower motor to the heater blower assembly. Pull the blower motor out of the heater assembly. Remove the push nut on the motor shaft and remove the wheel if necessary. To install, reverse the above steps of removal process. Ensure fully seating electrical connector so it clicks into position.

The blower motor resistor assembly is mounted next to the blower motor.

Installation is the reverse of the removal process. Replace the gasket between the blower motor and heater assembly if its condition is in doubt. Ensure the electrical connector is fully seated and that it "clicks" into place.

The console trim should be removed, electrical connectors should be disconnected, and the console and blower housing should be pulled out.