I have an older KitchenAid dishwasher Superba. At the start of the wash cycle it will screech/squeal loudly and then go away once it starts washing. It will not screech or squeal anymore until the next time I start a new wash. It was doing this before but sort of went away and was quieter for a while. Now its loud screech again. Researched on the web, but not sure if I should suspect motor, pump,etc.

Any help would be appreciated.

Thanks

Mark