From Wash Jets Not Working (Rear Works)

[Lynchyy]

Anybody got any tips to diagnose this? The feed going into the front wipers is not getting any water.

just wondering before I start stripping the car down if there is a common problem?

[bluethermal]

If the pump is running then its the one way valve.

[ATTAK Z]

Let's assume you've filled the system to the brim ?

[Lynchyy]

Yeah system is full. I haven't checked the pump runs actually. Great shout.

[marzman]

Trace the pipe back from the bonnet spray jets to under the front windscreen cowl.  There will be a Y shaped 1 way valve which gets blocked.  I replaced mine with a Bic Biro pen lid for a fe months and it worked perfectly.

[SHEZZA]

Check that you can hear the pump running would be the first point of call I’d say, it’s behind the front right wheel splash guard behind the bumper. 

[Mikey_S]

If you take the T pipes off the wipers, do you still get water out of them?

 

When I refurbed my wipers the jets packed up, turns out they were full of crud so I spent a whole afternoon (really!) Pumping hit water through them with a syringe, blowing them through with compressed air and digging crud out with a stripped down paperclip 

 

Worked perfectly after that

[Lynchyy]

Thanks for all the info. Looks like its a pipe blockage from the pump to the front screen, as ive swapped over the rear and front tube at the motor side (so technically when i press the rear, it should now operate the front) but it still doesnt work. Tried to blow compressed air back through the jet and no bubbling at the tank. I will buy from wash piping and re-route i think.

[bluethermal]

If the one way valve is blocked swapping the pump feed isn't going to make a difference.

[Lynchyy]

Ahh ok.  Thanks for the info. Where about a is the 1 way valve situated?

[bluethermal]

Open the cover over the brake fluid reservoir/servo and et voila.