How to Change a Blower Motor in a 2002 Buick Lesabre

by Kyle Sanstrom

The blower motor in a 2002 Buick LeSabre provides the force to move hot and cold air through the vehicle's ventilation system. As this motor ages, the bearings inside it can wear out, causing a high-pitched whine or vibration that is audible from inside the passenger cabin. Replacement blower motors are available from automotive parts stores, automotive salvage yards and Buick dealerships.

Step 1

Shift the Buick's transmission into park and turn off the engine. Apply the parking brake and turn on the interior dome light.

Step 2

Remove the plastic panel underneath the passenger side dashboard area. This panel contains built-in retaining clips and simply pops off by hand.

Step 3

Remove the three 8 mm nuts holding the blower motor assembly into the dashboard HVAC unit, use a 1/4-inch ratchet and an 8 mm socket. Remove the blower motor's electrical connector and discard the old blower motor.

Step 4

Install the new blower motor in the HVAC cavity and replace the 8 mm mounting nuts. Reconnect the blower motor's electrical connector and replace the plastic panel. Turn on the ignition and test the blower motor on all of the fan speed settings.

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