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Quick question. Have a 2016 Outback. I have noticed in cold weather when the fan is on 2,3,4 position the fan on the right side makes a squeaky rattling sound. Is this normal ? 70,000km. If i switch to position 1 or 5 it goes away. Cant keep listening to it. Anyone ?
 

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2017 OutBack Premier, 2019 Forester Ltd, 2016 370z Rdstr
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clucey,

As cardoc has suggested, a bearing on its way out .. or a maple key/leaf has lodged on the squirrel cage fins and the velocity of the fan makes it vibrate and strike the blades or not.

Easy to tell which. Three tabs lock the bottom tray under the glove box in place. Push each one in towards the firewall, the cover unlocks, swnig it down and remove it. Disconnect the wiring connector to the fan motor by pushing the lock tab on the connector and pulling down the connector. Remove the three screws that mount the motor, and the entire motor and fan assembly will drop down to the floor.

Should you not find something in the fan blades, or the cavity where the fan and motor sit, then the noise is from the the motor.

You can check the fan and the motor on the work bench by applying 12 volts (high speed) to the two terminals, or variable less voltages to replicate the other speeds. If it squeals, you can try using a turbine oil on each motor bearing if you can see access to them. Otherwise get a used one from a wrecked subie of the same generation as your car, as a new one from Subaru will be expensive. Good Luck!
 
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