Spins during agitation makes noise

Needs agitator dogs in agitator.

check the drive belt from the motor to the gearbox it might be louse that would make it screach and week agitating

you have a worn motor coupler
you can order a new one at sears
and its a ver y easy repair

Under the agitator there is a rachet mechanism that works the agitator. If it is stripped, it will skip until the next good tooth.. when it fails entirely the agitater will stop going back and forth. Its nylon and age along with overloading hastens its dearg.. If you can get the parts you can replace it yourself without difficulty. There is a single bolt in the center of the agitator top . Remove and loft agiyator straight up.

rachet device under agitator is stripped.

check water pump

check hub nut, it is likely loose, its under the agitator. top pops off agitator and bolt hold agitator down.

The drum/agitator bearings are bad I believe, or the gearbox has been damaged. This is an expensive repair. I would strongly consider buying a new washer. This is a great time to buy appliances since the stores are really competing, and the prices are at their lowest.

Ray

there should be a rubber washer with the bolt. if it is missing the bolt may back of during agitation. also the threads on the transimision may be stripped. Some Green lock tight found in most hard ware stores should help. the knocking noise is probably due the agitator coming loose.

Well, it sounds like you've done your homework. My first suspect would have been the agitator dogs too, but you said they were fine. Another likely suspect would have been the motor coupler, but you said the washer spins during the spin cycle. If the coupler was bad the unit would fill, but wouldn't agitate or spin. Plus, it would make an awful noise. I would have also suspected a clutch assembly, but you said the wash tub can spin. Normally, when the clutch goes bad, the drum won't spin, or spins slow. Another suspect could have been a bad lid switch, but the washer would have filled and stopped, without agitating or spinning. The only remaining suspect that I'm aware of is the gear case (transmission). Checking under the washer can give you some clues. Normally, when a gear case starts to go bad, they leak an amber colored oil. You may find puddles or drips under the washer. If you see no signs of oil the gear case could still be defective, however. But, before you go through all the trouble, double check the agitator one more time. Completely remove it from the tub and check the under side to ensure the grooves that grip the top of the gear case shaft have not been worn smooth. I hope this may have been some help to you.