On fourth water pump could the shaft be the problem

SOURCE: dishwasher leak

To clear the drain in a few easy steps; find where the outlet hose connects into your house drain system, disconnect it and then see if the machine will drain into a bucket/tray. Try it both by gravity (if you can get the hose below the water level)and with the machine on if not. This will tell you if the blockage is in the house drain not the machine. If the house drain is clear, see if you can disconnect the drain hose from the machine end and check it isn't blocked.if this is not removable, try poking a bit of wire or similar down it, being careful not to go past where it enters the machine (measure your bit of wire against the outside of the hose first). As Joe says, if you are sure the accessible filters and everything you can get to easily are clear, a garden hose in the hole will possibly clear the blockage if you can get a bit of pressure - often the easiest way is to hold a rag tightly around the end of the hose and the hole you are trying to get water through. (Note you will get wet - be very careful of electical sockets etc). If this doesn't seem to clear the blockage then the pump is either faulty, or not recieving instructions from the control board to work (more likely, although you would expect an error message). Hope this helps, if you wish to change Joe's rating you can just by rating the advice again. Good luck :)

SOURCE: Leaking Kenmore dishwasher

if you are very careful you can reseal it with a soldering iron as it should be a sealed cabinet. i have seen one seald with a cheap sealr and the cabinet turned orange.

SOURCE: GE Dishwasher Leaks

You can easily screw up the drain diverter arm trying to replace that seal. Repair is difficult. Pump assembly is rather expensive. (especially considering this was not a top of the line model) You would be much better off replacing the dishwasher. The new GE models are much quieter and have eliminated the center tower in almost all models.

SOURCE: Kenmore dish washer leaks thru the door, need replacement seal.

I dont know what models but several models leaked thru the soap dispensor in the door.They were recalled. Check the manufacture for your model.

SOURCE: GE 24in GSD980X Dishwasher water leak in pump &motor area

I had the same problem. There is no way of replacing seal/joint between pump and motor. It can't be taken apart w/o destroying parts, it only comes as an assembly. Costs around 130$ for pump/motor assy, so it might not be worth it.