My rear window sprayer stopped working. There is plenty of fluid in the reservoir and I hear the pump turning but no water is coming out the back. No obvious signs of leaking between the front and back. I disconnected the check valves as I was looking for clogs along the way and tried to blow into it to see if it was clogged. Obviously they are one way valves but I can not get air to flow in either direction. Is their a trick to them or are they designed to only work with fluid? Spray nozzle in the back is clear so I'm thinking the problem is with the check valves but don't want to spend $25 on them if that isn't the problem.

Any suggestions appreciated!!

 

The only time mine quit working was when the hose disconnected from the check valve in the D pillar.

If yours is connected, disconnect it and see if the pump will push water out of the hose. That will eliminate everything forward of that point.

 

Thanks Ronjenx. I'll try that later today. I have read other posts where it sometimes takes awhile to prime the line and I'm just worried about burning out my pump. As long as the reservoir is full, should I be OK with running it for an extended period?

 

ronjenx
Sometimes I get caught in the weeds and don't explore the obvious. Nothing was coming from the front. Started following the hose path and discovered that when I swapped out my front shocks last summer, the hose was pinched under the upper mount bushing. Just put the hard top back on last week so I didn't realize it was pinched until now.

Thanks again!