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Discussion Starter · #1 ·
Just installed a new Turbo control valve on my '04 R last night.<p>Since purchasing the car in November last year, I had noticed that on cold mornings the car seemed to stumble a bit when cold. The revised ECU programming helped that out, but not completely. <p>Over the last couple of weeks, however, there have been 3 occasions where while driving with the car fully warmed up, the car seemed to "cut out" or momentarily drop power 5-10 times in rapid succession. A search of the board revealed that the TCV could be the cluprit, and since it's a known problem area, my car is a relatively early '04 and it's only $30 bucks or so at Boston Volvo I figured hey, what the hell. Took about 5 minutes to install. Boy am I glad I did.<p>Not only was there no hesitation, but the car was much smoother spooling up onto the boost. It definitely helped out with the little bit of lag that there was and the boost definitley comes on smoother and without such a big spike. <p>Thanks for the wealth of knowledge guys. <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0">
 

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Re: New TCV....Smooooth (needsdecaf)

Do you have pics of this TCV? Would you recommend it to others... I'm looking for cheaper initial mods to do to my S60 and this interests me... do you have a link to where you purchased it from?
 

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Re: New TCV....Smooooth (Johann)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Johann</b> »</i></TD></TR><TR><TD CLASS="quote">Not a mod, maintenance.</TD></TR></TABLE><p>Johann is correct. It is not a mod, it is maintenance. I was losing boost in a transient mode, and it's back and working properly now. Obviously, if yours is working fine, there will not be a difference. And as discussed, it throws no codes. Only way to know if it's working properly is to hook up a boost gauge. Mine must have been going bad for some time and manifested itself recently in that "cutout" phenomenon. <p>Here's the part courtesy of Johann:<p><IMG SRC="http://www.swededemon.com/images/S60R/solenoid.jpg" BORDER="0"><p>I bought it from Boston Volvo Village, one of our advertisers here. Something around $30 or $35 bucks.
 

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Re: New TCV....Smooooth (needsdecaf)

Similar recent thread as a reference:<p><A HREF="http://forums.swedespeed.com/zerothread?id=58247" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=58247</A><p>Regards,<p>Derek
 

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Re: New TCV....Smooooth (needsdecaf)

<B>Warranty.</B><br>Why pay 30 bucks? This is not an oil change
 

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Ahh I see, I must have misread the initial post, my bad. Thanks for all the responses though, I love this forum <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0">
 

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Discussion Starter · #8 ·
Re: New TCV....Smooooth (JRL)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>JRL</b> »</i></TD></TR><TR><TD CLASS="quote"><B>Warranty.</B><br>Why pay 30 bucks? This is not an oil change</TD></TR></TABLE><p>Jim, you are right. It SHOULD be under warranty. <p>However my trips to three different dealers in the area have brought me to the understanding that if I brought the car in for this type of problem, ALL THREE would have told me: "eh, that's normal for the car. We don't see a problem". <p>The dealers in this area only know one thing...codes. If it doesn't throw a fault code in the computer, or there isn't a TNN for it, then they don't percieve it as a problem. They percieve me as an anal wacko instead. They really just simply suck. And this problem was WAY to intermittent for me to bring the tech out for a test drive. <p>Therefore, me making a trip to the dealer, having to be dropped off (or waiting a week or so for a loaner) and picked up, only to have them tell me that there's nothing wrong with the car was not an option. <p>Rant over. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0"> <p>
 

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Re: New TCV....Smooooth (JRL)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>JRL</b> »</i></TD></TR><TR><TD CLASS="quote"><B>Warranty.</B><br>Why pay 30 bucks? This is not an oil change</TD></TR></TABLE><p>Because sometimes it is easier to pay $30 than fight with the Service Writer... My car does this, they claimed it was an ECU fault and did a complete reload (AND said it drove smooth after) but it still does this..<p>Hmmm, go spend time fighting with them or spend $30 and put it in myself....<p>Not a tough decision...
 

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Re: New TCV....Smooooth (cschmelz)

Good enough, but it's a shame that some (most <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/rolleyes.gif" BORDER="0"> ) of us have to do this
 

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Re: New TCV....Smooooth (JRL)

i did the same thing. i bought one, just to see if it would do anything.<p>changed it in about 5 minutes.<p>car didn't seem faster, but did seem a bit smoother on boost. nice.<p>i didn't want to hassle over a warranty claim for a $30 part. besides, i doubt mine was really broken, just worn a bit.
 

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Re: New TCV....Smooooth (23109VC)

Curious as to the mileage on your cars of those that are replacing this? I am at 15.8K. Also, anyone care to share the install, 5 mins sounds pretty easy but I don't even know where this is in the car.
 

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Re: New TCV....Smooooth (needsdecaf)

Good rant and you are right <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0">
 

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Re: New TCV....Smooooth (JRL)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>JRL</b> »</i></TD></TR><TR><TD CLASS="quote">Good enough, but it's a shame that some (most <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/rolleyes.gif" BORDER="0"> ) of us have to do this</TD></TR></TABLE><p>I second that. It's suck a hassle to have to drive to two or three dealerships jsut to try and diagnose a problem and forget about trying to get warranty coverage half of the time.
 

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Re: New TCV....Smooooth (needsdecaf)

Has anyone tried the boost control valve from boostvalve.com ?<br>Not very expensive, but looks like a possibly more durable unit than Volvo OEM. My OEM replacement valve lasted about two weeks<p>Senilesurfer
 

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Re: New TCV....Smooooth (senilesurfer)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>senilesurfer</b> »</i></TD></TR><TR><TD CLASS="quote">Has anyone tried the boost control valve from boostvalve.com ?<br>Not very expensive, but looks like a possibly more durable unit than Volvo OEM. My OEM replacement valve lasted about two weeks</TD></TR></TABLE><p>That's a different technology....<p>The Volvo valve is like what the VW guys call a N75 valve. Those are also known to have a checkered history. The addition of a filter should solve any rel. issues. If you loose a valve and it is from foreign matter in the raw boost feed, there may be more crud in that line waiting to jam the new valve. If you replace a line, I would purge that feed hose with some cleaner. You don't even need to remove the hose. Disconnect it at the turbo and squirt cleaner back down the hose from the valve end to flush it out. I would do that even if I also added a filter.<p>
 

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Re: New TCV....Smooooth (JimLill)

Maybe the Perrin will work as a replacement.<p>Appears to be a bit more robust,<p><A HREF="http://www.perrinperformance.com/products/universal/ebcs.htm" TARGET="_blank">http://www.perrinperformance.c...s.htm</A>
 

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Re: New TCV....Smooooth (JimLill)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>JimLill</b> »</i></TD></TR><TR><TD CLASS="quote"><p>That's a different technology....<p>The Volvo valve is like what the VW guys call a N75 valve. Those are also known to have a checkered history. The addition of a filter should solve any rel. issues. If you loose a valve and it is from foreign matter in the raw boost feed, there may be more crud in that line waiting to jam the new valve. If you replace a line, I would purge that feed hose with some cleaner. You don't even need to remove the hose. Disconnect it at the turbo and squirt cleaner back down the hose from the valve end to flush it out. I would do that even if I also added a filter.</TD></TR></TABLE><p>got a source or P/N for the filter?<p>just read the other thread: <A HREF="http://pivo.northernbrewer.com/nbstore/action/search-do;jsessionid=AF4307DE648BFBCDE873EEBBD102B443?searchTerm=filter" TARGET="_blank">http://pivo.northernbrewer.com...ilter</A><BR><BR>
<i>Modified by vizwiz at 7:29 AM 6-6-2006</i>
 

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Re: New TCV....Smooooth (Red60R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Red60R</b> »</i></TD></TR><TR><TD CLASS="quote">Curious as to the mileage on your cars of those that are replacing this? I am at 15.8K. Also, anyone care to share the install, 5 mins sounds pretty easy but I don't even know where this is in the car. </TD></TR></TABLE><p>My install instructions can be found in this thread:<p><A HREF="http://forums.swedespeed.com/zerothread?id=58247" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=58247</A><p>Good luck!<p>Regards,<p>Derek<br>
 

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Re: New TCV....Smooooth (senilesurfer)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>senilesurfer</b> »</i></TD></TR><TR><TD CLASS="quote">Has anyone tried the boost control valve from boostvalve.com ?<br>Not very expensive, but looks like a possibly more durable unit than Volvo OEM. My OEM replacement valve lasted about two weeks<p>Senilesurfer</TD></TR></TABLE><p>Bought this product to use it as a series-mounted MBC (SMBC for former Saab owners from saabnet.com - goal is not to increase boost but simply reduce "lag" and increase the speed at which stock boost is ramped-up). Unfortunately, it appears that the Volvo ECU is a lot smarter than Saab's Trionic system as it didn't work anywhere near as good. Took it off within a week of installing it. That being said, I think blot used it to solve some overboost/spiking issues but it was a different type of install...<p>Regards,<p>Derek<br>
 
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