Re: Rear windshield washer nozzle: spray or stream?
Mine sprays. Try carefully cleaning the nozzle with a wide sewing needle (I keep one in my tool kit, got it from the wife's sewing basked). You do not want to poke it in too far, sort of push it in a little ways and rotate it a bit. Then take a bottle of Windex or 409 and give it a good soak for a few minutes. Finally, run a bunch of WW fluid through the nozzle to exercise it - hopefully you will flush the crud out.
I run mine regularly when I am in the carwash to keep the nozzle clean and fluid fresh. It will get clogged if you don't use it much. Best luck.