Liftmaster garage door squeaks very loudly, I have luped all parts on the door but sound is coming from motor?

Remove the cover from the motor unit and check the drive gear. It is a white nylon gear just in front of the motor unit and will be obvious if it is bad. The part number is 41A2817 and is available from any door opener service company. The part will come with instructions.

Remove the cover from the motor unit and check the drive gear. It will be obvious if it is bad. The part number is 41A2817 and is available from any good door service company. It comes with instructions.

Sounds like your drive gear has stripped. Remove the cover from the motor unit and check the gear. It is white nylon and it will be obvious if it is bad. Sounds like a good time to take a good look at your door springs. That loud bang may have been one of the breaking.

The most likely cause is the drive gear. This is a white nylon gear just in front of the motor. Remove the cover from the motor unit and it will be obvious if the gear is bad. The part number is 41A2817 and is available at Sears or any good door opener service company. It comes with instructions.

Remove the cover from the motor unit. I'm sure you will find white sawdust all over and the drive gear will be stripped. It is a white nylon gear just in front of the motor. The part number is 41A2817 and comes with instructions. It is available at any door opener service company.

Remove the cover from the motor unit and I am sure you will find white sawdust inside. The drive gear is most likely stripped. It is a white nylon gear just in front of the motor. The part number is 41A2817 and is available at any good door opener service company. It will come with instructions.

It is most likely the drive gear. It isn't within the motor assembly but just in front of the motor. The part number is 41A2817 and is available at any good door opener service company. It comes with instructions.

Remove the cover and check the drive gear. It is white nylon and is just in front of the motor. Most likely stripped. The part number is 41A2817 and is available at any good door service company. It comes with instructions but you must be a DIY'er.

Sounds like the gears might be out of the operator. If you can remove the cover see if there are white shavings in the cover. A Craftsman operator will take gear kit # 41C4220A

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