IPD sale XeMODeX - Experts in Volvo Electronics

Get email notification of topic replies. Log in or register (free). Amazon Link Buy anything with this and it helps MVS!

Unknown part with disconnected hose

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
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Post Reply
s3bi
Posts: 14
Joined: Thu Nov 21, 2019 11:06 pm
Year and Model: 850, 2.4L 10V, 1996
Location: Germany
Has thanked: 18 times

Unknown part with disconnected hose

Post by s3bi »

Hi,

I've found a hose which is not connected that's coming from this part:
volvoteilunbekannt.jpeg
partnumber.jpeg
Unfortunately the part number is worn and not readable. I also couldn't find a detailed overview of the parts in the engine bay, where it would be mentioned.
The hose ends at the right side the air filter box.
hoseending.jpeg
Can someone tell me what this part is and where the hose is supposed to go normally?

It's a 1996 Volvo 850, 2.5L 10V 106kW.

Thanks in advance.
User avatar
abscate
MVS Moderator
Posts: 22596
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 378 times
Been thanked: 1184 times

Re: Unknown part with disconnected hose

Post by abscate »

It looks like one of the air box hoses that control the hot air flapper.

Look for two fittings on the rear of the air filter box and see if one is open without a hose

There are also cruise control hoses in that area, those go under the air box , I believe
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
User avatar
volvolugnut
Posts: 1045
Joined: Sun Jan 19, 2014 9:51 am
Year and Model: 2001 V70
Location: Midsouth USA
Has thanked: 58 times
Been thanked: 127 times

Re: Unknown part with disconnected hose

Post by volvolugnut »

It looks like the hose attached to the device in the second photo is near to failure. The hose diameter change at the end of the hose nipple is showing failure cracks. It would be good to replace now before it fails.

Soap Box Rant Alert!

Everyone attempting to service a modern vehicle should periodically check vacuum hoses for signs of failure - swelling, cracking or hardening. Replacement is cheap and often does not require tools or knowledge. Failures may leave you stalled in the road in the dark and wet. Replacing them at your convenience is better and you will learn some about the hose routing. Just be sure to replace with same size and remove only one hose at a time. You might also find some fluid leaks.
Soap Box Rant End.


volvolugnut
2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple parts cars.
Stu70
Posts: 108
Joined: Wed Oct 12, 2016 10:27 am
Year and Model: 1998 S70 10v
Location: New Zealand
Has thanked: 17 times
Been thanked: 16 times

Re: Unknown part with disconnected hose

Post by Stu70 »

Hey, nice engine ! Without that pesky turbo pipe in the road and the collectors edition “DOHC” cover.
1998 S70 10v BiFuel “it’s a what??”
Last of three factory fitted CNG Press Cars :roll:
Stu70
Posts: 108
Joined: Wed Oct 12, 2016 10:27 am
Year and Model: 1998 S70 10v
Location: New Zealand
Has thanked: 17 times
Been thanked: 16 times

Re: Unknown part with disconnected hose

Post by Stu70 »

+1 for hose coming round that side of box being cruise vacuum motor line...
Or
From the bottom nipple of air box flap control just been tucked out of the way...
1998 S70 10v BiFuel “it’s a what??”
Last of three factory fitted CNG Press Cars :roll:
s3bi
Posts: 14
Joined: Thu Nov 21, 2019 11:06 pm
Year and Model: 850, 2.4L 10V, 1996
Location: Germany
Has thanked: 18 times

Re: Unknown part with disconnected hose

Post by s3bi »

Thanks, I'm going to order a few new parts from Skandix soon (also lost a wheel cap and need a mounting bracket for the gas tank), so I'll get some vacuum hoses as well.

I've encountered another problem, there's a squeaky noise coming from the front right at lower speeds, even when riding over small bumps. I couldn't see anything suspicious in the wheel suspension or the damper when I removed the wheel. I gave everything a good shake but also nothing was loose. A friendly car mechanic thought it could be a part of the wheel fairing, he put on some mounting adhesive but this didn't fix it. Are there any known common causes for this? I could also upload a audio file if it helps.
s3bi
Posts: 14
Joined: Thu Nov 21, 2019 11:06 pm
Year and Model: 850, 2.4L 10V, 1996
Location: Germany
Has thanked: 18 times

Re: Unknown part with disconnected hose

Post by s3bi »

I was able to find out what it is now. It's neither for the hot air flapper nor the cruise control, but for a cold running regulator which did not come with the car but was added afterwards to achieve a better emissions class (Euro2) so the car costs less in taxes.
The vacuum hose that connects to nothing actually connects to nothing, it once had a small air filter piece on the other end, where it pulled in the air that this valve lets through while the motor is cold. There are also variants that use the air filter of the car but there's no hole drilled in for this one.
bronco
Posts: 185
Joined: Sun Aug 11, 2019 7:21 pm
Year and Model: 1998 V70
Location: boston
Has thanked: 8 times
Been thanked: 16 times

Re: Unknown part with disconnected hose

Post by bronco »

volvolugnut wrote: Fri Nov 22, 2019 10:38 am It looks like the hose attached to the device in the second photo is near to failure. The hose diameter change at the end of the hose nipple is showing failure cracks. It would be good to replace now before it fails.

Soap Box Rant Alert!

Everyone attempting to service a modern vehicle should periodically check vacuum hoses for signs of failure - swelling, cracking or hardening. Replacement is cheap and often does not require tools or knowledge. Failures may leave you stalled in the road in the dark and wet. Replacing them at your convenience is better and you will learn some about the hose routing. Just be sure to replace with same size and remove only one hose at a time. You might also find some fluid leaks.
Soap Box Rant End.


volvolugnut
Don't sell your soapboxes short!

I know someone who buys old wooden ivory soap boxes and resells them for a nice profit
Post Reply
  • Similar Topics
    Replies
    Views
    Last post