Screen wash dribbling out

northwest1965

I have a Vauxhall Corsa. The screen wash will only dribble out on the windscreen and then stops. I have cleaned the holes with a pin. The reservoir is full, no leaks. The rear screen wash comes out perfectly.  

Any advice on what to do next?

Alanp

Can you pull the pipe off where it enters the screenwash nozzles, ( do this carefully) operate the washer and check the flow, if it flows out fine then the problem is with the nozzle/pipe to nozzles, if it doesn’t flow then it is with the motor/washer bottle/ pipe work,
silly question, it is filled with water ..?

northwest1965

Alanp said:

Can you pull the pipe off where it enters the screenwash nozzles, ( do this carefully) operate the washer and check the flow, if it flows out fine then the problem is with the nozzle/pipe to nozzles, if it doesn’t flow then it is with the motor/washer bottle/ pipe work,
silly question, it is filled with water ..?

Tried to pull off the pipe but cannot do it. Can't be the pump if rear works 100%. Reservoir is full and no leaks

Grumpy_chap

northwest1965 said:

Alanp said:

Can you pull the pipe off where it enters the screenwash nozzles, ( do this carefully) operate the washer and check the flow, if it flows out fine then the problem is with the nozzle/pipe to nozzles, if it doesn’t flow then it is with the motor/washer bottle/ pipe work,
silly question, it is filled with water ..?

Tried to pull off the pipe but cannot do it. Can't be the pump if rear works 100%. Reservoir is full and no leaks

Are there two different pumps?
Front pump and separate rear pump?

facade

If you have a look at the tubes (I can't remember, likely they are under the scuttle and the wiper blades have to come off) the two join into 1 at a round valve.

This is a non-return valve to keep the tubes full so the squirt starts instantly.

Anyway, there is a rubber diaphragm inside, and a spring and a plastic doodah that acts as a valve. If you are careful, you can flick the top off, remove the diaphragm, spring and doodah and put the top back on.

This will fix it for zero cost. (You might notice a delay in squirting, but I doubt it, my Renault Nissan has been without the innards for years and I can't tell).

Or you could buy another valve and replace it, but that isn't very MSE

I could be making this up and there is a cylindrical inline valve in the single pipe on a Vauxhall, but the same applies- replace it or gut the innards.

EDIT: there is a filter in the washer bottle on a corsa that gets blocked with gunge.

If the valve thing doesn't fix it, dismantle the car and clean it

https://www.youtube.com/watch?v=RHDDJQeqgsY

I suppose the thing to do is pull the inlet pipe off the valve and make sure that it squirts continuously from the pipe as Alanp said before you buy a new valve/gut the original.

facade

northwest1965 said:

Alanp said:

Can you pull the pipe off where it enters the screenwash nozzles, ( do this carefully) operate the washer and check the flow, if it flows out fine then the problem is with the nozzle/pipe to nozzles, if it doesn’t flow then it is with the motor/washer bottle/ pipe work,
silly question, it is filled with water ..?

Tried to pull off the pipe but cannot do it. Can't be the pump if rear works 100%. Reservoir is full and no leaks

There are two pumps (3 if you have headlamp washers). The front one is set lower in the tank so all the gunge builds up around it you can't use up all the water with the rear, and know to fill up when the rear stops working.

Bigwheels1111

First does water come out under the car when front washer is used.

If so like my car the pipe could be split, mine was where the pipe passes the bonnet hinge.

When the bonnet was up jets worked fine, when down the split opened and just a dribble came out,

Second could be the pump filter if it has one, my vectra had a small gause filter that was blocked by pink snot.

Thats what it looked like. Wiped off and never failed again.

I think it was because I had changed brands or screen wash without flushing with clean water first.

Third would be the pump.

My pump had no gause but 2 pipes one for the front and one for the rear.

Without your reg Im not sure, but here is a filter for a Vauxhall.

https://www.ebay.co.uk/itm/225376122617?epid=2235471654&hash=item347976b6f9:g:ujoAAOSw-api7l6v&amdata=enc:AQAIAAAA0DIaypyqN35MekxOAGsYSJj9Ar8dL26Eb0tm7H4nOCzArkSiRJuxs5/mFPF8JASpLYzmvA68DpPq8XQJBNKJkNh/X+hkkfyPE+aKURfw99hPd7zd4WjxKE/dbGB0aHXSPOIrWiBlCQPQekp+fFHbVCCbio2zlTSdxlfkv5FrFp9DfXzGX8f/eWRhZIqeVVY5g5eE7g3MFsgo1nPgaRw5c+cSdIJ8ebD8yvvaO6edDa7LlTsjd91RJzge4DvaIWRp7tCnqB1FT7jv4NdmSID0ncE=|tkp:Bk9SR5zSmaecYg

You would need to narrow down your search by reg,Year etc.

https://www.ebay.co.uk/sch/i.html?_from=R40&_nkw=vauxhall+corsa+washer+pump&_sacat=6030&LH_TitleDesc=0&_sop=15&Brand=Vauxhall|febi%20bilstein|MEYLE&rt=nc&Type=Washer%20Pump&_dcat=174112

photome

If you have used some dodgy screen wash then it may be gunge in bottom of the tank.

asda concentrate did that to mine ( I did dilute it)