Just a guess here but, it may help someone else. I've not looked at an 07 so this might not apply (90-93). The fluid get to the hood through and "accordioned" rubber tube on the driver's side hood hinge. it is possible that it has "kinked" right there. Try squirting the windshield with the hood open (accordion stretched out). I had to re-route mine in order to make it work (only after i replaced motors, pumps, and nozzles..
good luck