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windshield wipers / squirters stay on 850 1995

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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bobd324
Posts: 11
Joined: 1 May 2006
Year and Model: 850 1995
Location: coventry, CT. usa

windshield wipers / squirters stay on 850 1995

Post by bobd324 »

Hello,
Yesterday i finished replacing the PCV system, oil seperator and lines and the car runs well.

Today when i headed out i ran the window squirter a couple of times in a row to clean off the pollen thjat had acumulated. When i let off i realised that both the squirter and wipers were still going. I tried moving the lever to different positions with no change. I shut the car off and restarted with no change, so i removed the fuse to shut it off.

Any suggestions? Could i have hooked up something wrong in the many connections that i touched removing the intake manifold? It doesnt seem that i would have touched anything related to the washer / squirter system and this may just be a coincidance. Where is the ww relay?
thanks bobd

vegasjetskier
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Post by vegasjetskier »

It's the one marked in red (203) In this diagram:
850WiperRelayLocation1995.jpg
850WiperRelayLocation1995.jpg (91.29 KiB) Viewed 1301 times
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vegasjetskier
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Post by vegasjetskier »

bobd324 wrote: Any suggestions? Could i have hooked up something wrong in the many connections that i touched removing the intake manifold? It doesnt seem that i would have touched anything related to the washer / squirter system and this may just be a coincidance. Where is the ww relay?
thanks bobd
There's a wire running to the washer fluid pump, which is in the tank down inside the front fender. Maybe you disturbed that wire when you worked on the intake. It sounds like the relay is stuck/welded shut. Maybe you created a short in one of the wires. I'd take the relay out and tap it a few times, then reinstall it. Check over the wiring in the area you were working, then try the wipers again and see what happens.
.

SOLD - 2001 Volvo S80 T6: Mobil 1 Oil & Synthetic ATF, Brake Performance drilled and slotted front rotors, Akebono Euro Ceramic pads and Yokohama Avid V4S tires, 91K miles.

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bobd324
Posts: 11
Joined: 1 May 2006
Year and Model: 850 1995
Location: coventry, CT. usa

Post by bobd324 »

is this relay inside the pasenger compartment above the drivers feet? I was also thinking that the relay had welded in the on position after repeted windshield squirts.
Thanks, bobd

vegasjetskier
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Post by vegasjetskier »

bobd324 wrote:is this relay inside the pasenger compartment above the drivers feet?
No. Look on the backside (closest to the firewall) of the fuse/relay box in the engine compartment.
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SOLD - 2001 Volvo S80 T6: Mobil 1 Oil & Synthetic ATF, Brake Performance drilled and slotted front rotors, Akebono Euro Ceramic pads and Yokohama Avid V4S tires, 91K miles.

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bobd324
Posts: 11
Joined: 1 May 2006
Year and Model: 850 1995
Location: coventry, CT. usa

Post by bobd324 »

ok i will check there, i tried to remove the fuse & 101-108 level relay block but i didnt think to look behind them. i will check in the morning as it is getting dark here.
thanks, bobd

bobd324
Posts: 11
Joined: 1 May 2006
Year and Model: 850 1995
Location: coventry, CT. usa

Post by bobd324 »

i just tried to remove the fuse / relay block, i could easilly move it about 1" upwards but it wouldnt come out. are there any other retainers? I have removed all visable screws, either 4 or 6 i think, but it wont remove. Am I missing something? The 2oo level of relays are directly under the first level of relays? Are they facing down under them or is there a second relay board facing up under the first level that includes the fuse block?
thanks, bobd

vegasjetskier
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Post by vegasjetskier »

I believe those relays are on the back side of the fuse box in your car.

Here are some VADIS directions on how to remove it. Maybe OzarkLee, MIJ, or Billofdurham will jump in here with some tips. I think there's a connector at the bottom of the box, also. I would try to just get at the relays without removing the box.
850ElecricalControlPanelRemoval1998.pdf
(130.46 KiB) Downloaded 173 times
850WiperArmPanelRemoval1998.jpg
850WiperArmPanelRemoval1998.jpg (78.83 KiB) Viewed 1242 times
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bobd324
Posts: 11
Joined: 1 May 2006
Year and Model: 850 1995
Location: coventry, CT. usa

Post by bobd324 »

i got the relay panel up and removed the relay for the windshield wipers, and the headlight wipers and squirter are still running.

I disconected the wire plug to the washer / wiper switch on the steering column and headlight wipers and the squirter are still running. it seems no power should go to anything with the switch disconnected.

Is there a seperate relay for the headlight wipers? I unpluged the squirter pump and it stopped (i also believe i broke the side hose connection to the pump)

vegasjetskier
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Post by vegasjetskier »

Here's a wiring diagram for the early type wipers. It looks like the headlight wipers are not run through a relay. Apparently the return for the wipers is wired directly to the fuse, but the initial sweep is wired to the switch, which you have disconnected. The water pump is also wired to the switch. So I would say that you have a short in the wiring that is sending battery power to one or more of the wiper wires. Look for a short to the yellow/white wires in the connector or the wiring coming out of the connector.
850WiperWiringDiagram1995Early.jpg
850WiperWiringDiagram1995Early.jpg (35.27 KiB) Viewed 1234 times
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SOLD - 2001 Volvo S80 T6: Mobil 1 Oil & Synthetic ATF, Brake Performance drilled and slotted front rotors, Akebono Euro Ceramic pads and Yokohama Avid V4S tires, 91K miles.

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