I have a 99 Legacy Outback that I just acquired and one of the several things I’m working on is the washer system … neither the front or rear worked when I got it so checked and verified fuses and then bench tested the pumps. The front was ok, but the rear failed. I cleared the lines for the front, cleaned the nozzles and now it’s working ok. I blew air through the rear line and had fluid shooting up the back glass so looked like a new pump should fix that. I installed a new pump and still inop but can hear the pump running ok. I disconnected the line and blew air through it again but now nothing comes out. I tried to blow air back through the nozzle but the anti-syphen valve prevents that … anyone else been through tracing rear washer hose blockages? Alldata doesn’t show the routing or connections …

Thanks in advance!

i believe that the rear washer line runs along the door sill on drivers side - inside the cabin, under carpet/trim... it enters the tailgate in the upper left corner

i would start checking at the point where it enters the tailgate.. there is a rubber boot that the hose runs thru.. pop that loose and check the hose for breaks.

I can confirm, at least in my '95 it does run inside the cabin under the carpet and door sill trim along the drivers side. 

Edited May 3, 20223 yr by laegion