Yaris front windscreen washer only works intermittently

[Franski55]

Hi

Has anyone else had this? Back one works fine, but front one comes and goes. Not sure if it could be a blockage or not. Happens in normal temps. Asked the garage to have a look but am guessing it was working for them. Any ideas on what could be causing this? Would like to guide garage better than just saying 'it doesn't work!'

thank you!

[flash22]

A duff pump (it has 2 iirc) or the bottle or lines a gunged up - pull the line at the nearest joint in the engine bay and see if it squirts when the stalk is pulled (aim carefully as you may get wet)

what screen wash do you use and i take it you have topped it up (iirc the rear pump is lower than the front one)?

[Franski55]

Thank you! I shall give this a go and report back.

[bathtub tom]

It may be gunge in the reservoir. Try sticking a hose in it and give it a good blast out. Similar discussed here:

https://www.honestjohn.co.uk/forum/post/134341/access-to-vauxhall

 

 

[Parts-King]

The one way valves stick, quite possibly needs a new valve