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What's this? 98 v70

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teedoxo
Posts: 7
Joined: 01 Jun 2018, 07:46
Year and Model: 1998 V70
Location: British Columbia

Post by teedoxo »

I recently bought a 1998 V70 and im doing some work to it. What is this, why is it plugged and should i be reconnecting it??
TIA
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Coming out of front of engine
Coming out of front of engine

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WhatAmIDoing
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Year and Model: 1998 S/V70 T5M
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Post by WhatAmIDoing »

My best guess is that is part of the PCV or Evap system, but I'm sure one of the experts will chime in eventually and say for certain. I'd start with searching the forum for those and see if that hose fits in in one of those systems. I'll check my engine in the morning and see if I can find and trace it.
'98 S70 T5M - 323,000mi - awaiting heart transplant :shock:
'98 V70 T5M - 324,000mi - my new project
'99 S70 "AWD" - 220,000+mi - gone :cry:
Knows enough to be dangerous :wink:

teedoxo
Posts: 7
Joined: 01 Jun 2018, 07:46
Year and Model: 1998 V70
Location: British Columbia

Post by teedoxo »

Thanks so much
Just want this baby running in perfect condition. If this should be connected ill do it.

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RickHaleParker
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Post by RickHaleParker »

Lift up the top radiator hose, under it there should be a check valve and a "T" connector that hose runs to.

IMAG0182.jpg
Active
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )

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kranz
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Year and Model: '98 V70 NA stick
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Post by kranz »

I have a 98 V70 NA and I believe that nipple on the manifold connects to a radiator mounted evap solenoid. It is the white hose shown in the center of first photo. The second photo shows the manifold removed but the end of the evap connection may be seen at the center of the photo. If you have a turbo, it might be different.

EDIT: Actually, I think my comment is INCORRECT. Upon further poking around and examination of the EVAP diagram under the hood, it appears that the evap solenoid connection goes to the vacuum tree on the throttle assembly. Sorry
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P1010011.JPG
Les is more.

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misha
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Post by misha »

@kranz....that solenoid is for SAS.
Teedoxo...the vacuum port you have plugged is for evaporator valve which should be attached at fan shroud and 2 pin connector is going to it.
2010 S80 D5 / restyling / fully equipped / Twin turbo / Savile Gray Metallic (492)

History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
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kranz
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Post by kranz »

Yes, now that the sun is up, I took a quick peek under the hood. That connects to a hose clipped to the fan shroud that runs to the purge valve located under the air intake. It is visible just at the left hand side of my first photo. As Misha stated, the valve has a 2 pin connector.
Les is more.

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RickHaleParker
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Post by RickHaleParker »

850-s70-vacuum-hose-routing.png
Active
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )

teedoxo
Posts: 7
Joined: 01 Jun 2018, 07:46
Year and Model: 1998 V70
Location: British Columbia

Post by teedoxo »

More pics.
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20180620_165705.jpg
20180620_165723.jpg

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