Lincoln 7L1Z-19805-B Fan And Motor Assembly

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Connect a voltmeter to chassis ground and probe pin 87A with the positive lead of the voltmeter. Voltage should be greater than 10 volts. Attach another jumper from pin 86 to chassis ground and use the voltmeter to check for 10 volts or better voltage at pin 87. If the relay fails any of these tests, replace the relay.

Disconnect the blower motor electrical connector from the motor. Remove the three blower motor cover screws and separate the blower motor cover from the blower motor. Remove the three blower motor mounting screws and lower the blower motor carefully out of the housing. If the blower motor is being replaced, transfer the fan wheel to the new motor by removing the retaining clip and pushing the nut onto the shaft. The remainder of the installation is the reverse of removal. For Expedition and Navigator models with a console blower motor, remove the sheetmetal braces from under the console, the large blower duct, and the upper and lower duct covers from the blower motor assembly. Disconnect the electrical connector and remove the two bolts to remove the blower motor. Some models of Expedition and Navigator vehicles have an optional rear heat/air blower located behind the left-rear interior trim panel. With the trim panel removed, there is access to remove/test the auxiliary blower motor.