My maytag washer is shaking violently on the rinse cycle

Replace all four struts

I had this washer at one point in time. was not very happy with it, even though i sold it to alot of my customers. usually if the machine is shaking violently it means one of a couple things. first make sure your washer is properly leveled. if it is make sure you washing the same types of clothes in the load, no mixed loads of towels with shirts. if your problem is not that then you possibly have a bad clutch. which will cause the tumbling wheels to spin during your spin cycle as well, its a costly fix so i would consider a new front loading maytag/whirpool if that is your problem. remember this machine was designed by maytag, since then they were purchased by whirlpool and everything is on a whirlpool platform now. if you do purchase a new washer and have the matching dryer to your neptune TL, it would recommended to replace the dryer as well, considering the capacity of these machines are smaller then most of the new high efficiency machines on the market today.

Check damper pads then replace if necessary. These pads prevents the washer from violent vibration. It is located beneath the main support housing on the base of the washer.

It's usually a control board problem. sorry for the bad news :(

My guess is that one of the three counterweights have separated from their support. Probably rusted away.
36 years is quite a feat. Today's machines would be lucky to 1/3 of that life.
Sounds like its time to go shopping.
Do you have an anniversary coming up?
Ladies love washers for an anniversary gift.

On something like this you will need to remove the washer wrap to inspect the suspension springs & base assembly. Please see the link provided for accessing the inside of the washer. Be sure the shipping pins have been removed. The tub should float freely.

I had this problem as well. I called dealer and Maytag. They made an appointment and stood me up several times.
I finally went to place that sells refrigeration equipment and bought an anti-vibration pad. It's a 12" square waffle pad used under large equipment to prevent them from vibrating loose on connected piping. I cut it into 4 pieces and put one under each corner of the dryer. Problem solved, in fact it worked so well that I stacked dryer over washer, placed pads between units and have not had a problem since. I also gained a lot of space in my laundry room as well.

When the washer goes into spin cycle it is suppost to start at a slow speed and continue to increase speed (to a maximum of 800 RPM) as the water leaves the clothes. Your washer is going directly to 800 RPM which causes the washer to shake and stop giving you the E4 code. The control board that controls this speed increase must be replaced.

Hi you must make sure its level in all directions. ie front to back and side to side. Alos dont overload it. If its on a wooden floor it will vibrate. A concrete floor is the best

Have you leveled it with the feet?