Agitator stopped moving back and forth

depends on what u mean by agitator works fine on spin? it doesnt do anything on spin cycle cause its not suppose to? if ur saying ur not getting any wash agitation? then I suspect ur cam dogs inside agitator are bad? remove the 7/16 bolt nut and remove top of agitator and u will see the cam dogs underneath it. there fairly cheap like 5-10 bucks for a set, if u can push the agitator back and forth when its all together in tub, and its catching the teeth and not easy to move back in forth, their not bad, but if u have no resistance then they are bad

My Maytag Performa makes a grinding sound when it agitates. When it starts to dump the water it makes a loud grinding on metal sound... really loud. What is the problem and how much to fix?

After the machine fills the next step is to agitate. By agitate I mean the wash portion. The plastic fin in the middle of the tub rotates back and forth. So, after the washer fills, if the machine does not agitate, but stops dead, you have a broken lid switch. When I say stops dead, I mean no noise whatsoever. If the machine makes noise you have other problems.

If the machine fills, agitates, and then stops dead, the problem is still the lid switch. The next step would be describing the noise so I can more accurately give a suggestion. Problems include but are not limited to: broken couplers, malfunctioning water pumps, and/or defective motors or transmissions. These are the vast majority of the problems, and the others need no mention.

With a model number I can give a part number of the lid switch, and or other problematic parts. Also, I can give you an average price of the parts. With this information you could order it yourself and save money :) The model numbers are located under the lid of the washer. Not physically on the lid, but right under it. Get eye level with the top of the washer and you will see it ;)

After the machine fills the next step is to agitate. By agitate I mean the wash portion. The plastic fin in the middle of the tub rotates back and forth. So, after the washer fills, if the machine does not agitate, but stops dead, you have a broken lid switch. When I say stops dead, I mean no noise whatsoever. If the machine makes noise you have other problems.

If the machine fills, agitates, and then stops dead, the problem is still the lid switch. The next step would be describing the noise so I can more accurately give a suggestion. Problems include but are not limited to: broken couplers, malfunctioning water pumps, and/or defective motors or transmissions. These are the vast majority of the problems, and the others need no mention.

With a model number I can give a part number of the lid switch, and or other problematic parts. Also, I can give you an average price of the parts. With this information you could order it yourself and save money :) The model numbers are located under the lid of the washer. Not physically on the lid, but right under it. Get eye level with the top of the washer and you will see it ;)

When you put the motor in did you replace the coupler between the motor and transmission? When fixing the agitator you need to get the agitator repair kit, It has seals, dogs,thrust plate, cam bearing and seals. The upper agitator is supposed to move only in one direction to get the clothes to move down towards the agitator. Do not overload machine. I have one of these and after 12 years I finally had to install this upper repair kit because the upper agitator quit moving. You may have an agitate cam that is going bad inside the transmission

Check the motor for proper oltage. The motor controls everything from spining to agitator.

if it's making a loud buzzing noise while its suppose to be agitating or spinning its the motor coupling

dismantle the agitator and see if the shaft of the gearbox is moving.its either the gearbox or the agitator

The inner tub on some machines does rotate very slowly while filling to assist with the even distibution of the load. If the agitator is turning back & forth while in fill mode, you could have a timer or transmission problem. You need a tech.

If the fill and drain functions correctly, AND the spin cycle works correctly, AND the cycle itself starts and completes correctly, the problem being that the back and forth motion of the agitator starts the loud grinding noise, it will likley be broken gears in the transmission. The single most expensive part in the washing machine.