Coolant leaking from the heater core.
Look under the Trooper and count them.
I own a 1994 Isuzu Trooper, the blower moter is located inside the truck under the glove box.
Its under the intake
under the hood in the fuse box
Under the intake mannifold (you have to remove it to get to it).
Heater core / hose leaking.
The Isuzu Trooper has a diagram for how to route the serpentine belt under the hood. The diagram is located on top of the fan shroud on the left side of the hood locking latch.
its under the center console between the seats
Inside evaparator case under the passanger side dash
The heater core has failed and is leaking engine coolant.
what fluid is leaking from the tube.is it coolant water or deisel?
your heater core is bad