They might be clogged or frozen pump. I just added fluid after it being empty for awhile.
Chevrolet Q&AAsk Your Question
2002 Chevrolet Impala Question: Where are the wiper nozzles located?
Answer #1G. T. Service Center (2366 Answers) , Stephenville, TX - (254) 638-3236ProfessorG December 26, 2013, 13:03Master
Check the pump at the bottom of the washer fluid tank, usually behind the wheel, fender well.
Answer #2pushrod December 26, 2013, 19:32Master
Agree with PG, can you hear the pump run when a helper turns it on?