Windshield Washer Not Working

Post by **MrAl** » 31 Mar 2023, 09:03

Hi,

I checked the washer today and found that it does not spray anymore.
I put in new fluid, and still nothing.
I hear the pump running though.
Think it could be a clogged line or something? How would i troubleshoot that?

Thanks.

WhatAmIDoing · Post by **WhatAmIDoing** » 31 Mar 2023, 09:27

You're in luck because I just had to troubleshoot this. With the hood open, do they spray? In my case, The rubber line shifted and got pinched by the hood hinge. Is the line blown out and leaking somewhere? It runs from the bottom of the tank, above the fender liner, then up through the fender by the hood hinge, then on to under the hood insulation. There are also multiple check valves along the way. One by the pump near the inline filter (could be plugged), then one at each nozzle which doubles as the T and L fitting. They can clog up. Do you have headlight washers? Do you have the fan pattern or dual stream washer nozzles? The 2 stream ones can easily be cleaned with a safety pin. To test the pump, you will have to disconnect the line at the pump and quickly connect another long length of hose that's at least taller then the fender, or else gravity will push the washer fluid out. And general safety note, wear gloves and glasses, as you really don't want washer fluid on or in your body.

Post by **scot850** » 31 Mar 2023, 10:22

The check valves can stick as they get old and if they don't see regular use, same with the pump.

I have posted a thread on the subject before and on how to open the valves and check them.

Neil.

454cid · Post by **454cid** » 31 Mar 2023, 11:14

I need to go through the system on my 850, too. My 99 S70 works fantastic, so I know the 850 can be better.

Post by **MrAl** » 31 Mar 2023, 16:37

WhatAmIDoing wrote: ↑31 Mar 2023, 09:27 You're in luck because I just had to troubleshoot this. With the hood open, do they spray? In my case, The rubber line shifted and got pinched by the hood hinge. Is the line blown out and leaking somewhere? It runs from the bottom of the tank, above the fender liner, then up through the fender by the hood hinge, then on to under the hood insulation. There are also multiple check valves along the way. One by the pump near the inline filter (could be plugged), then one at each nozzle which doubles as the T and L fitting. They can clog up. Do you have headlight washers? Do you have the fan pattern or dual stream washer nozzles? The 2 stream ones can easily be cleaned with a safety pin. To test the pump, you will have to disconnect the line at the pump and quickly connect another long length of hose that's at least taller then the fender, or else gravity will push the washer fluid out. And general safety note, wear gloves and glasses, as you really don't want washer fluid on or in your body.

Hi,

Ok thanks ill check that out asap.

Post by **MrAl** » 31 Mar 2023, 16:38

scot850 wrote: ↑31 Mar 2023, 10:22 The check valves can stick as they get old and if they don't see regular use, same with the pump.

I have posted a thread on the subject before and on how to open the valves and check them.

Neil.

Hi Neil,

Remember the thread?

Post by **scot850** » 31 Mar 2023, 19:31

Try and see if this one helps:

viewtopic.php?p=594741&hilit=windshield ... es#p594741

Neil.

Post by **MrAl** » 01 Apr 2023, 12:35

scot850 wrote: ↑31 Mar 2023, 19:31 Try and see if this one helps:

viewtopic.php?p=594741&hilit=windshield ... es#p594741

Neil.

Hi,

Oh ok thanks.

Looks interesting. I'll have to try to find the valves i guess.
I couldnt do much today it was raining out. Just took off my solar panel for some minor maintenance. Got back in the house as soon as possible.

WhatAmIDoing · Post by **WhatAmIDoing** » 01 Apr 2023, 16:43

MrAl wrote: ↑31 Mar 2023, 16:38
scot850 wrote: ↑31 Mar 2023, 10:22 The check valves can stick as they get old and if they don't see regular use, same with the pump.

I have posted a thread on the subject before and on how to open the valves and check them.

Neil.
Hi Neil,

Remember the thread?

I believe the link was posted in my V70 restoration thread, along with some additional guidance on the subject. Link in my signature.

Post by **MrAl** » 02 Apr 2023, 09:03

WhatAmIDoing wrote: ↑01 Apr 2023, 16:43
MrAl wrote: ↑31 Mar 2023, 16:38
scot850 wrote: ↑31 Mar 2023, 10:22 The check valves can stick as they get old and if they don't see regular use, same with the pump.

I have posted a thread on the subject before and on how to open the valves and check them.

Neil.
Hi Neil,

Remember the thread?
I believe the link was posted in my V70 restoration thread, along with some additional guidance on the subject. Link in my signature.

Ok thanks. Today i had to reinstall my solar panel on the car and almost got blown away by the cold wind, so i am waiting for a better day to do some more stuff that has to be done outside of the car.