rear screen washer?

the problem could be at the pump, make sure the pump is pumping water at a slight pressure,if not the answer is with the pump. if a ok check the pipe from pump to jet for kinks,something blocking it, or an inline non return valve, which is faulty. if a ok endever to get the pipe of the back off the jet, and try again for water comeing through.if it does it should be the jet blocked. but with what you say i think your problem is before the jet.

rab
September 2012

may be a filter in bottle that is bunged up

k
September 2012

do not put wd in the water unit or you will ruin it,remove the jet from the body shell,and blow in it,do not stick a needle in it,next disconnect the water hose from the nozzle from the pump end and blow through it if you find it hard connect an air hose to it

mm
September 2012