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Boost Pressure Solenoid

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive P2 platform cars sold as model years 2001-2007 (North American market year designations).

2001 - 2007 V70
2001 - 2004 V70 XC (Cross Country)
2004 - 2007 XC70 (Cross Country)
2001 - 2009 S60
2003 - 2007 S60 R
2004 - 2007 V70 R

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andyposter76
Posts: 4
Joined: Wed May 13, 2020 10:50 am
Year and Model: 2001 v70xc
Location: New Hampshire

Boost Pressure Solenoid

Post by andyposter76 »

Hello Everyone,
My 2001 v70xc is giving a code indicating a bad boost pressure solenoid. I cannot for the life of me find a resource to indicate where it is located on this specific model. Any information would be helpful. I’ve read the forums, and it seems that this item could be located in 5 different places depending upon your model.
Thank you

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- Pete -
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Joined: Fri Dec 06, 2013 10:13 pm
Year and Model: 01, 04, 04, 04 V70's
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Post by - Pete - »

It’s clipped to the airbox, underneath the tube that runs from the airbox to the turbo. It has 3 vac lines going to it & an electrical connector with 2 wires.


0BEB28BB-B4E9-49DC-AE69-D533AA15A070.jpeg
0BEB28BB-B4E9-49DC-AE69-D533AA15A070.jpeg (99.44 KiB) Viewed 723 times
2001 V70XC 167k
2004 V70 AWD 147k
2004 V70R M66 146k
2004 XC70 299k
2006 XC70 155k Sold

andyposter76
Posts: 4
Joined: Wed May 13, 2020 10:50 am
Year and Model: 2001 v70xc
Location: New Hampshire

Post by andyposter76 »

Thank you so much! That is incredibly helpful and much appreciated!

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- Pete -
Posts: 832
Joined: Fri Dec 06, 2013 10:13 pm
Year and Model: 01, 04, 04, 04 V70's
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Post by - Pete - »

Double check fitment, but yours should be Pierburg 30670448.
2001 V70XC 167k
2004 V70 AWD 147k
2004 V70R M66 146k
2004 XC70 299k
2006 XC70 155k Sold

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SuperHerman
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Year and Model: 2004 & 2016 XC90
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Post by SuperHerman »

Check the three hoses and the electrical connection before ordering anything. It is very common for the hoses to disintegrate with age - focus on the line going to the turbo.

If you replace the unit or hoses - make sure to mark every hose carefully or change one at a time. It is ever so common to confuse them and reinstall the hoses incorrectly.

andyposter76
Posts: 4
Joined: Wed May 13, 2020 10:50 am
Year and Model: 2001 v70xc
Location: New Hampshire

Post by andyposter76 »

Great advice! Thank you both. Hoses were good, and I found the part easily online for 1/4 the price I was quoted at a shop. I appreciate the help! Model specific information for this vehicle is not always the easiest thing to run down. So glad I found this forum!

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ndphotonl
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Year and Model: 2001 S80 2.4T
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Post by ndphotonl »

If someone wants to order the "HD" variant, its this Pierburg one. It's being used on Porsches etc

Pierburg TCV 7.22908.03.0

ImageVolvo S80 2.4T Pierburg TCV 7.22908.03.0 by Andy Ramdin, on Flickr

ImageVolvo S80 2.4T Pierburg TCV 7.22908.03.0 by Andy Ramdin, on Flickr
Volvo S80 2.4T Wasa Limited Edition (+-230-240BHP)
FlickR images

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- Pete -
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Year and Model: 01, 04, 04, 04 V70's
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Post by - Pete - »

With the HD TCV’s, I would caution people. The aftermarket non-pierburg HD TCV’s have many reports of failures at early ages. Especially when exposed to colder temps. Also reports of boost spikes etc which in some cases have been purported to be fatal (to the engine).

The general consensus amongst people not selling HD TCV’s is that it is best to stick with the stock Pierburg part number or Pierburg as a brand if going HD. Personally I don’t see the point in a HD TCV; for the average person just keeping their car healthy & running it is unnecessary. Even for a tuned car it’s splitting hairs, HD vs stock.
2001 V70XC 167k
2004 V70 AWD 147k
2004 V70R M66 146k
2004 XC70 299k
2006 XC70 155k Sold

andyposter76
Posts: 4
Joined: Wed May 13, 2020 10:50 am
Year and Model: 2001 v70xc
Location: New Hampshire

Post by andyposter76 »

Hey guys, I got the correctly matched part and did the change in about 4 minutes. Hoses weren’t compromised, clips didn’t break. Cost me $28 to do something my local shop quoted me a price of $225 on. Thank you all for your help!

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