Ford F85Z-19805-CA Cooling Blower Motor

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.

Yes, 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.

In Expedition and Navigator models with a console blower motor, the sheetmetal braces from under the console, the large blower duct, and the upper and lower duct covers from the blower motor assembly should be removed. Then, the electrical connector should be disconnected from the blower motor. After that, the blower motor mounting screws can be removed, allowing the motor to be carefully pulled out from the assembly. It is important to ensure that no debris falls into the ductwork during this process. Once the blower motor is removed, inspect the mounting area for any signs of wear or damage before installing the new motor. Reassemble the components in reverse order, ensuring all connections are secure and the ductwork is properly aligned to prevent air leaks.