1999 Olds Intrigue wipers work but squirter doesn't- is there a pump that I can change?

Try taking the hose off the back side of the spray nozzel and see it there is fluid there. It may just be the nozzel plugged. A couple of strands of fine copper wire from an extention cord will usually clear the hole in the nozzel. The pump is located on the bottom of the windshield washer reservoir but before you take it off, listen to see if you can hear it running. If you can't hear it run, replace the pump; if you can hear it run, the hose or squirter buttons may be clogged and will need to be cleaned out.