The nozzles or the hoses may be clogged.
Look up 2002 Ford Taurus in the www.RockAuto.com parts catalog and then look under Wiper & Washer to find washer pumps, washer fluid level sensor and other parts.
In relation to the washer fluid, check if the fluid tube is not twisted or blocked in anyway.
Check either at the bottom of the windshield washer fluid reservoir or check to see if the wiper motor has washer hoses connected to it
bottom of the washer fluid bottle
Windshield washer fluid has a freezing point of -40
The back wiper fluid is supplied by the windshield washer fluid tank in your engine compartment on the 2003 Ford Explorer ( 4 door )
This light indicates that the car is low on wiper fluid. To refill the wiper fluid resovuoir pop the hood and pour washer fluid in the clear tank. Note: not all cars have a wiper fluid warning light since not having any wiper fluid isn't a big deal.
Most of the times the washer fluid goes into the same resirvoir as the front.
The washer pump is on the bottom of the fluid reservoir.
The pump should be connected to the base of the washer fluid reservoir.
it feeds off the main washertank,
How about your wiper washer fluid is low and needs to be refilled.