If you only took of the parts you needed to to get at the water pump then no. When replacing the water pump you do not need to get far enough into the engine to do anything with the timing.
It is not required, but is a good idea.
A Dodge Durango does not have a timing belt. It has timing chain. If the timing cover chain gasket is leaking it is normal to change it while changing the water pump.
no you do not have to change the timing chain when changing the water pump.
It is possible that the timing belt is not in proper time.
You do not have to, but if the water pump is timing belt driven it is highly recommended.
Full size 1994 Dodge Van does not have a timing belt, but instead has a timing chain and gears on front of engine behind water pump.
The water pump is timing belt driven you got to get to the timing belt to have access.
Yes, the timing belt has to be removed.
The pump bolts directly to the engine block, directly behind the timing belt assembly. Therefore, if you have a need to replace the timing belt, it's probably a good idea to consider changing the water pump as well (and visa-versa).
the water pump is located next to the throttle body. there is no reason to set the timing.
Yes, on this particular engine the water pump is driven by the timing belt.
Behind the timing belt cover.