Where are the wiper nozzles located? on 2002 Chevrolet Impala

They might be clogged or frozen pump. I just added fluid after it being empty for awhile.

Asked by for the 2002 Chevrolet Impala
Agree with PG, can you hear the pump run when a helper turns it on?
1 more answer
Check the pump at the bottom of the washer fluid tank, usually behind the wheel, fender well.