It dep[ends on exctly which engine you have as to how difficult it is, Get a manual you your car and do the job correctly .
if its a 4 cylinder, its located inside the timing case.
Check autozone.com it tells a bit about it. some engines you have to remove the timing belt so its not a very east job.
you undo the tire housing and pull off the exaust manifold. replace the muffler fluid and then your done
remove belt pump is accessable remove bolts make sure coolant is drained first replace
the library should have a shop manual for this vehicle :)
tools and knowledge (or a manual)
how do I replace water pump 2000 Pontiac Grand AM SE1?
The fuel relay on a sunbird in under the hood on the left side just by the water over flow tank.
how do i replace a water hose in 1993 pontiac grand am
Pay a mechanic to replace it
Look at the belt on the engine, then look at the pulleys. The water pump is behind the pulley without any groves in the pulley.
The water pump pushes the coolant through the engine block and head(s) then into the heater core.