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Rear windshield fluid sprayer

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
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finlayscoyle
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finlayscoyle

Rear windshield fluid sprayer

Post by finlayscoyle » Sat Feb 29, 2020 2:22 pm

Hi, my Volvo's rear windshield fluid sprayer stopped working any idea on how to fix this?

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erikv11
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erikv11

Re: Rear windshield fluid sprayer

Post by erikv11 » Sat Feb 29, 2020 10:32 pm

Ideas sure! Short of full DIY instructions but I'd thoroughly check the hose that supplies the fluid:

- is the hose full of frozen water somewhere in the line?
- is the line connected properly up front at the reservoir in the engine bay? There is only one reservoir for all wiper fluid destinations (front windshield, headlights, rear window)
- is the line connected properly at the rear of the car? You can check this by removing the trim above the rear side window on the passenger's side.
- is the rear nozzle plugged?

Oh also - does the pump motor hum when you move the lever to supply fluid? Could even be a fuse if not. The pump is near the reservoir under the hood.
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 286k
'06 S60 R, 167k
'99 Camry V6 :shock: 125k
gone: '96 NA 850 210k, '98 NA V70 182k

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Re: Rear windshield fluid sprayer

Post by scot850 » Sat Feb 29, 2020 10:36 pm

The pump most likely has frozen due of lack of use. The wagons have 2 pumps. I have had to replace one even after a year as I seldom use the rear one and they stick. I have been able to strip them and get them going again but it is a pain to do and likely ends up with damaging them beyond repair. There used to be cheap after market ones but they are now hard to find.

If you pull the leaver and you hear no whining from the area of the washer bottle then this is the issue. If the pump works but no water reaches the rear windscreen then there is a one way valve usually near the coolant tank area that can jamb closed. To see if that makes a difference disconnect it and see if water reaches the end of the pipe. If it does then replace the valve. Valve is there to hold water in the pipe to help quicker response at the rear.

If that is ok, then next issue is the nozzle may be plugged at the rear wiper.

Good Luck,

Neil.
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erikv11Eddystone
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

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erikv11
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Re: Rear windshield fluid sprayer

Post by erikv11 » Sun Mar 01, 2020 11:02 am

Good post from Neil. I now recall I had a plugged valve happen once on one of my wagons.
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 286k
'06 S60 R, 167k
'99 Camry V6 :shock: 125k
gone: '96 NA 850 210k, '98 NA V70 182k

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Re: Rear windshield fluid sprayer

Post by Richard99 » Mon Mar 02, 2020 2:55 pm

The pumps often fail at the age of these cars. I replaced mine with a junkyard one that I checked for function with a 9 V battery and alligator clips.

The pump for the rear washer is the top one seen from viewing downward near the base of the filler neck. It usually requires a pliers to get a good grip to remove it.
Eric

1998 Volvo V70
2000 Volvo V70XC

finlayscoyle
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Re: Rear windshield fluid sprayer

Post by finlayscoyle » Tue Mar 24, 2020 11:44 pm

Thank you guys I managed to fix it, the pump was indeed bad, a short visit to the breakers yard and I replaced it. Working all good now!
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scot850
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Re: Rear windshield fluid sprayer

Post by scot850 » Wed Mar 25, 2020 11:58 am

Glad it was that simple. Best to test it maybe every couple of weeks regardless.

Neil.
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finlayscoyle
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

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Re: Rear windshield fluid sprayer

Post by Richard99 » Thu Mar 26, 2020 2:17 am

scot850 wrote:
Wed Mar 25, 2020 11:58 am
Glad it was that simple. Best to test it maybe every couple of weeks regardless.

Neil.
+1

I give mine a good squirt every week or so.

Eric
Eric

1998 Volvo V70
2000 Volvo V70XC

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