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Hi guys, my rear window wiper in my 1992 liberty wagon works, however no water comes out. I've topped up the water, checked the fuse, and the nozzle appears to make a mechanical noise meaning it's trying to put water out. I've attached an amateur diagram of it, but my knowledge of this stuff is pretty rubbish. I'll explain diagram:
A: I have no idea where this hose goes, or what it's job is. It doesn't appear to be getting wet from water....
B: this is where label A goes in
C: this is where the water I topped up went into
D: Like label A i have no idea where this hose goes or what its role is
E: the water bottle which is currently full.

I'm thinking there must be a blockage somewhere. If you can figure anything out from my crude diagram I'll be most grateful. Thanks,
Mark

A is a drain tube for the roof.
B is where it belongs
C is correct
D is the hose in question
E is self explanatory

Now pull hose D off the motor and press the wash button, if water gushes out, the pump is pumping.

Now blow on the tube. If its free, there is a hole or a split and it will need replacing (quite possibly some water leaking from the broken part) If it is blocked proceed to the next step

Now remove the washer nozzle (the noise you can hear cold be travelling up the door)

Reconnect the pipe at the pump and try again, if there is water, you have a blocked nozzle, if not, its a blocked pipe

Try blowing back down the tube to dislodge what ever is in there

look down the feed line for the washer nozzle, there will be a small fitting in the hose that looks like a joiner. pull it out, unblock it and put it back in the same way u pulled it out. its a drainback valve and they regularly get scummed up.

Sorry mate, what's the feed line? Is it in my picture?>

The feed line is the hose that goes from the pump to the nozzle

It travels up through the rear pillar from the washer bottle, it then goes through a small rubber tube into the tailgate where it runs along the top to the nozzle

thanks mate. I managed to work out that the blockage is right in the nozzle, but despite using a needle to try and unblock it, and going the opposite direction and blowing & shoving a coathanger up there, it still won't unblock. Also tried vinegar and other stuff but it's obviously stuffed