FINALLY, a Vacuum Hose Diagram

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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MadeInJapan
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Year and Model: '98 S70 T5 '07S40T5
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FINALLY, a Vacuum Hose Diagram

Postby MadeInJapan » Sat Apr 08, 2006 5:40 pm

This is for a '98 T-5. Others will vary but the same or similar to most 850 turbo's. The designed changed with later S/V/70's so be aware. I got so darned frustrated trying to see this intsy bittsy diagram under the hood of the car, so I finally took a decent digital picture today. I hope it helps others. Just copy it and keep it on your computer. It should be a good reference.


Image

Image
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo

95autoturbo
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Location: ST Charles MO

Postby 95autoturbo » Sun Apr 09, 2006 4:02 am

yes......It is an 850!

MadeInJapan
MVS Moderator
Posts: 12763
Joined: Thu Mar 31, 2005 2:14 pm
Year and Model: '98 S70 T5 '07S40T5
Location: Knoxville, TN American but born in Japan
Flag: United States of America

Postby MadeInJapan » Sun Apr 09, 2006 4:35 am

We can post that diagram too! Image
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo

Ghassan
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Joined: Thu Dec 22, 2005 5:49 pm
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Location: Montreal, QC, Canada

Postby Ghassan » Wed Apr 12, 2006 4:55 pm

hi,

Can someone point out what the mini air filter is for. There is a large one on the left side of the screen (I believe for air intake) and there a small one on the bottom right side of the picture. What is the small one for?

thanks.
ghassan.
98 S70 T5 Auto

03 540i 6sp

MadeInJapan
MVS Moderator
Posts: 12763
Joined: Thu Mar 31, 2005 2:14 pm
Year and Model: '98 S70 T5 '07S40T5
Location: Knoxville, TN American but born in Japan
Flag: United States of America

Postby MadeInJapan » Wed Apr 12, 2006 11:45 pm

Good question...I was wondering the same thing. If you really want to know, follow the line (actually hard to get to...runs under battery) from the purge valve and see where it goes...actually might go to the same air filter???
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo

STORMY
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vacuum leak

Postby STORMY » Sat Aug 12, 2006 12:57 am

can a hole in the vacuum hose cause the air to blow out the side vents and not the middle ones?
CARRIE 780 BERTONE TURBO

NEED HELP PLEASE!!

MadeInJapan
MVS Moderator
Posts: 12763
Joined: Thu Mar 31, 2005 2:14 pm
Year and Model: '98 S70 T5 '07S40T5
Location: Knoxville, TN American but born in Japan
Flag: United States of America

Postby MadeInJapan » Sat Aug 12, 2006 2:13 am

Are you talking about Air Conditioner in the cabin? If so, then no, this has nothing to do with that. Instead, you may have small motors in your vent system itself that opens and closes the flaps, and they may be broken, or dirty and not able to move properly. There are probably other reasons too...not familiar with your car either....sorry.
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo

Volvo_240_Atari_2600
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Joined: Sun Feb 11, 2007 2:33 pm
Year and Model: 89 245 GL
Location: Jupiter, Florida

Postby Volvo_240_Atari_2600 » Mon Oct 08, 2007 3:27 am

Just came across this older thread.

I finally bought the 98 V70 Non-Turbo wagon I had mentioned in an earlier thread. The car id nice and I was able to talk her down and we settled for $2,500.00 based on the need of a timing belt (complete) and possible CV Joint or Spring Seat on passenger side, not to mention it was low on 3 qts of oil, but no aparent leak from the rear main seal... The leak was from the oil filler cap that was not sealing well... My 240 did that and the trich was a $10.00 cap.

Anyway...

I washed the engine compartment today since it was filthy... Oil leaked over time from above (oil filler cap) and in the bath... the high pressure of water took out one vacum hose and I have no clue as to where it connects.

I will see if I can get a pic tomorrow to show you guys to help me ID where it goes.

Description of where I am sure it comes from:

Just at the back of the air filter box and facing the driver are two vacum pegas that come from the filter box... The lower vacum line is still conected and the rubber elbow looks OK but could be replaced... It's the one on the top...

The top elbow was brittle and could not take the pressure of the water and gave way... Now I have a line of about 10-12" long and I cannot find where it would have conected to.

Can someone tell me where that line goes on the 98 V70 non turbo?
NA car if that helps.

Doing the T Belt etc... next Saturday and today the car now runs like crap after the wash. I did get water in the distributor cap so I had to open it and dry it out to start...

Car started but the guy at AutoZone said the scanner read a fault code of "Misfiring" which was taken before the engine wash and before that it ran smooth even with the CEL light on which I thought could have been the 02 sensor.

But now, it runs like it is misfiring and from the looks inside the distributor cap, I am almost convinced that a change of plugs, rotor, cap and wires should resolve that issue.

Any thoughts?

Could that vacume line be an added culprit since the reading before the wash was MISFIRE but it ran smooth before the wash.

Thanks

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chuckcintron
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Location: Upstate New York

Postby chuckcintron » Mon Oct 08, 2007 12:27 pm

Be sure to do the PCV rebuild. Many of your oil leak issues will be solved by that repair.

Man, you are brave taking a high pressure wand to your engine :(

Also, thread hijacking like this makes it tough for folks who may search the forum in the future to find information learned in this thread. Might have been better to start a new thread...

-Chuck

kenborn
Posts: 1
Joined: Fri Aug 14, 2009 9:54 pm
Year and Model: S70 T5 1998
Location: indinapolis

Re: FINALLY, a Vacuum Hose Diagram

Postby kenborn » Sat Aug 15, 2009 4:09 pm

Can you provide the picture of the vaccum hose please
I have a 98 S70 T5 changed the engine and don't remember where the hoses connect to.


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