Noisy Maytag Dishwasher

I can't seem to find the search function in this forum so I'm sorry if this has been covered elsewhere.

I have a 6 year old Maytag Jetclean Dishwasher. When we first installed it we marvelled at how quiet it was, now I'm thinking of replacing it because it has gotten so loud. I've pulled it out from under the counter and the insulation blanket appears to be in good shape. I've tried cleaning everything I can dis-assemble but I still get a lot of motor noise (low hum, nothing indicating a problem) and hear the water splashing on the sides of the tub. I tried running some vinegar through it to see if hard water build up might have been an issue but nothing seems to make a difference.

Can anyone suggest a cleaning method or give me some ideas of how to quiet down the beast? I hate to replace just due to noise.

Thanks,
Ski

 

With a motor noise the pump seal may have been damaged letting water seep to motor... not easy to see without taking it apart...