My dishwasher is a 15 year-old Whirlpool that has been okay up to now.
Last night I noticed the adjacent cabinet was wet inside so the
dishwasher was obviously leaking and the cabinet must have been wicking
up the moisture over time.

I pulled the dishwasher out about 6 inches before I realized the power
cord was keeping it from coming out any farther. Since it was after 10
PM I didn't want to mess with it any more but I did take a look
underneath to see what was there. The linoleum underneath was
discolored and a hole had been eaten through it from the water that had
been dripping. It looked like waterdrops were falling from the lowest
structure of the dishwasher. I assume it was the pump; it was in the
middle of the dishwasher. At the time there was no water running and
the unit was off.

Does anyone have any suggestions as to what may be leaking and what to
check when I pull the dishwasher out? I realize its probably old
enough to replace, but I'm about to spend some money on other household
items and if I can fix this myself that would save several hundred
dollars.

--
No matter what happens, someone will find a way to take it too
seriously.