I have had an intermittent blower motor for a few months and decided to give it a look see. I pulled the unit out, disassembled it then cleaned, lubed, reassembled and it works fan-tastic!

1- remove fan from under dash with 5/16 nut driver after disconnecting wire.

Bench fan motor - use really large socket to set fan in to help hold upright.

2- using small pick release tabs that hold wire blades in connector and push blade backwards using a flat blade screwdriver. They don't have to come all the way out yet, just released from retainer tabs is fine.

3- remove spring clip on squirrel cage and gently loosen with pry bar and remove cage.

4- remove two Phillips screws on too of motor housing. You will see 3 pins with spring retainers, these do not need to be removed.

5- fan motor is held in housing by 3 rubber isolator pads. GENTLY pry motor out of housing.

6- now we disassemble motor. Using small metal chisel straighten area of case where it has been peened over the top cover. You will see 4 cover tabs that the case has been peened over two edges. Don't cut out material with chie just straighten it and pry case apart.

7- once case is split you can pull out stator with brush assembly. There will be two indexed washers on the bottom shaft, note orientation for reassembly.

8- gently slide brush assembly off stator and inspect brushes for condition.

9- in my case, the contact point where the brushes rub was really dirty. I cleaned this area by chucking the stator in the drill press and used 500 grit paper to polish the copper. Blew everything out and washed the squirrel cage then...

10- reassemble in reverse order

 

Thanks for the write-up. This should be beneficial to many folks on here.

 

Excellent!!! Thanks for sharing.

What exactly were your issues? Mine seems fine now but just wondering what to look for in the future.