Windscreen Washers intermittent

[Ken57]

Good morning with a cry for help.

This problem relates to my 2011 Yaris T Spirit.  It might sound crazy but the washers usually fail to work on a hot day or when the engine is hot, or sometimes when really cold.

At this point I need to emphasise that the pump is OK and always works.  Sometimes water just dribbles from the jets.  The other thing to emphasise is that the jets are all clear.

I am guessing that the problem actually lies with the feed tubing but I do not know how to access it.  The jets appear to be in a box section.  Could anyone please help me to find the route, and access to the tubes so that I could check and replace.

Thanks in anticipation

Ken

[Parts-King]

Most likely the one way washer valve is duff, sorry I can't post a picture of it, my image host is down today. The valve sits inline in the piping, only a few pounds, just change it, they fail a lot 

[Ken57]

Thanks Kingo,

I now know what the one-way washer valve loooks like courtesy of Amazon.

You say it sits inline in the piping. That is my problem, I do not know the route of the piping. where in the piping is it located?  Can you help me locate it please.

Thanks

[Ken57]

Thanks for the tip.  Another member has had the same problem and identified it as the one way valve.  He actually identified it's location and advice how to access it.

Without you input I would still be searching for an answer.

Thanks again.