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Discussion Starter · #1 ·
Hello all,<p>There's a thread on the XC90 forum where the Yamaha 4.4L V8 engines are failing. It seems that the bearings supporting the counterbalance shaft are failing. Hope this doesn't wind up being a common occurrence with this engine. I have the extended warranty, but was planning on getting more than 100k on this engine -- don't know if I can pay $15K for a new engine if it fails out of warranty. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/frown.gif" BORDER="0"> <p>Here's the thread:<p><A HREF="http://forums.swedespeed.com/zerothread?id=123707" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=123707</A>
 

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Re: 4.4L V8 Engine Failures (arporro)

Seems kinda suspicious to me. One guy with the problem and he claims to 5 others (all in his area? Well, even if he is the 6th one, out of all of the 4.4 V8s Volvo has sold, that is not even a fraction of a percent. It is also odd that not a single other one of the 5 "known" was has seemed to post anything anywhere about this. In any event, I hope this does not become a trend.
 

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Re: 4.4L V8 Engine Failures (ImInPA)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>ImInPA</b> »</i></TD></TR><TR><TD CLASS="quote">Seems kinda suspicious to me. One guy with the problem and he claims to 5 others (all in his area? Well, even if he is the 6th one, out of all of the 4.4 V8s Volvo has sold, that is not even a fraction of a percent. It is also odd that not a single other one of the 5 "known" was has seemed to post anything anywhere about this. In any event, I hope this does not become a trend.</TD></TR></TABLE><p>Based on what I read in the thread, there are two confirmed failures of the engine for people who regularly post on Sweedespeed. As you said, the others cases are hearsay, so I would take them with a grain of salt. However, two V8 engine failures for regular Swedespeed contributors may not be an insignificant number. I believe both engines that failed were out of 2005 XC90s which would be the first year the engine was in production. Hopefully, maybe the failures are due to a bad batch of bearings that since has been corrected by time the 2007 engines were built.
 

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Re: 4.4L V8 Engine Failures (arporro)

Perhaps. Even if there are two reported, this would be in the thousanth of a percent based on the number of these vehicles sold world-wide since the inception. I think it is something to be aware of, but, not necessarily to worry about. It could be that the dealer messed up (this does happen) and did not put in enough oil during an oil change (rare, but, I have experienced this first hand!!!). I would simply enjoy the wonderful machine you drive. Something as significant as motor bearings going bad in a particular vehicle is pretty tuff to keep quiet. I remember when Toyota was having Sludge issues with their engines. That was all over the web before Toyota confessed to there being a problem. Nothing travels as quickly as bad news. Also, not every owner checks work done by a dealer when possible. These forums can, and, unfortunately are, often used to garner support, vent, and scare other owners into thinking there is a real issue when in fact it is an isolated occurance. None of the posts say what the oil level in the car was, if the owner added oil prior to seeing the dealer, or any number of other stats.
 

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Re: 4.4L V8 Engine Failures (ImInPA)

Honestly, these engines should be fine for years to come unless you drive them like an 18 year old. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0"> Which I don't think is too big of a problem amongst S80 owners.
 

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Re: 4.4L V8 Engine Failures (vivek9856)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>vivek9856</b> »</i></TD></TR><TR><TD CLASS="quote">Honestly, these engines should be fine for years to come unless you drive them like an 18 year old. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0"> Which I don't think is too big of a problem amongst S80 owners. </TD></TR></TABLE><p>Hahahahahaha damn youngin <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/tongue.gif" BORDER="0">
 

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Re: 4.4L V8 Engine Failures (vivek9856)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>vivek9856</b> »</i></TD></TR><TR><TD CLASS="quote">Honestly, these engines should be fine for years to come unless you drive them like an 18 year old. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0"> Which I don't think is too big of a problem amongst S80 owners. </TD></TR></TABLE><p>I ruined a set of bearings in a V8 when I was about your age ;-)
 

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Re: 4.4L V8 Engine Failures (vivek9856)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>vivek9856</b> »</i></TD></TR><TR><TD CLASS="quote">Honestly, these engines should be fine for years to come unless you drive them like an 18 year old. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0"> Which I don't think is too big of a problem amongst S80 owners. </TD></TR></TABLE><br>I drive both of mine (S80 & XC90) like that and they are fine <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0">
 

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Re: 4.4L V8 Engine Failures (bschurr)

Thanks for the heads-up. None of these failures have been reported on TrueDelta's Car Reliability Survey. While I doubt that the couple reported are the only two that have occurred, the failure rate can't be high, and could very well only affect some 2005 XC90s.
 

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I bought an '07 S80 V8 with 21xxx on the clock last week. Fabulous car.<p>I had it inspected at a Volvo specialist shop before purchase and the story the owner related was that Volvo had to send out a Dealer Inquiry (or whatever the term is) on the V8s early in their lifetime because Volvo believed they were not getting the expected warranty work on the V8s and thought dealers were withholding the information.<p>After some feedback it was determined that the dealers weren't holding back but that the V8s just weren't breaking.<p>True? BS? Who knows, but it made me feel even better about my Volvo V8.
 

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Re: 4.4L V8 Engine Failures (mobocracy)

Any kind of failure on the V8 is extremely rare.
 

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Re: 4.4L V8 Engine Failures (VolvoMax)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>VolvoMax</b> »</i></TD></TR><TR><TD CLASS="quote">Any kind of failure on the V8 is extremely rare.</TD></TR></TABLE><p>I'll second that. EXTREMELY rare.
 

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Re: 4.4L V8 Engine Failures (mobocracy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>mobocracy</b> »</i></TD></TR><TR><TD CLASS="quote">I bought an '07 S80 V8 with 21xxx on the clock last week. Fabulous car.<p>I had it inspected at a Volvo specialist shop before purchase and the story the owner related was that Volvo had to send out a Dealer Inquiry (or whatever the term is) on the V8s early in their lifetime because Volvo believed they were not getting the expected warranty work on the V8s and thought dealers were withholding the information.<p>After some feedback it was determined that the dealers weren't holding back but that the V8s just weren't breaking.<p>True? BS? Who knows, but it made me feel even better about my Volvo V8.</TD></TR></TABLE><p>Nothing against the V8, but this sounds like BS. Why would dealers withhold information about engine repairs? Last I checked they liked to get paid, and they have to file the warranty claim to get paid.<p>In general transmission and drivetrain components are much more likely to fail than the engine during the first 120k miles.
 

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Discussion Starter · #14 ·
Re: 4.4L V8 Engine Failures (T Schroeder)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>T Schroeder</b> »</i></TD></TR><TR><TD CLASS="quote"><p>I'll second that. EXTREMELY rare.</TD></TR></TABLE><p>However, if you follow the XC90 thread, the counterbalance shafts are failing on more '05 production engines. See this thread: <A HREF="http://forums.swedespeed.com/zerothread?id=126698" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=126698</A><p> Three more failures are documented in this thread - the original poster and a Volvo technician with pictures of two more documented failures of the same part on the XC90 forum. This technician says that one failure mode is the bearing housing rusting out due to water collecting in the part of the engine where it is housed. Supposedly the fix was for Yamaha to modify the engines and put in a drain hole in late '05 production. This technician goes on to say that some of the failures he has seen does not seem to be rust related though. At this time, it appears that all failures due to the counterbalance shaft bearings are in '05 XC90s only. I'm crossing my fingers and hope no '06 or '07 engines start failing. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/frown.gif" BORDER="0">
 

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Re: 4.4L V8 Engine Failures (arporro)

I asked my dealer (I have known the service manager for nearly 20 years through various dealerships) if they have had any issues with the V8's. He assured me that they have not had any engine related issues with the V8's. That is just one dealership. So far, having just re-read the XC90 thread, there appears to be five or six reported by two individuals. The tech has seen three with the rust and no drain hole 2005's and two with the drain hole. I wonder if that is the only tech on this site. Still seems odd to me that the reports seem to be limited to a single dealership. <p>For those V8 owners out there I sure hope this is not a more widespread problem. Fortunately, the S80's would all be after the 2005 MY. There are no reported instances so far for model years after 2005. With only 5-6 reported for 2005, this sure seems like a pretty isolated occurrence.
 

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Re: 4.4L V8 Engine Failures (ImInPA)

I have been reading all the threads on this. I understand that Yamaha installed a drain hole in subsequent V8's to allow water to drain and prevent rusting/failure of the CB shaft. <p>Now from the other threads even 2005 MY V8's with the hole have had the CB shaft fail. Does this indicate that the water drain hole has not solved the problem? <p>I would have assumed that since 2005 is the first model year for the V8 it would be those that fail first. However, the mileage range is from 36k to 120k and this makes no sense. If there going to fail would they not fail in a closer time frame considering the part in question.
 

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Re: 4.4L V8 Engine Failures (napster)

napster, I agree with you. It really makes no sense. The extremely small number affected. The fact that most are tied to a single dealership. The wide range of mileage in the failures. Some with rust, some without rust. I can only hope it is not a design flaw, but, then if it was inherent in the design, one would think it would be far more widespread. At my dealership they told me that one of their customers has a 2007 V8 in their loaner fleet with almost 200K miles on it and it has only had regular maintenance.<p>If there are any other techs on here, it would be great to hear from them.
 

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Re: 4.4L V8 Engine Failures (ImInPA)

ImInPA said:
At my dealership they told me that one of their customers has a 2007 V8 in their loaner fleet with almost 200K miles on it and it has only had regular maintenance.<p>
<p>I am glad you posted this, it makes me feel a little less worried.<p>Also, Noble are using this V8 on their new M600 car. I am sure they looked at this V8 under a microscope before deciding to use it in their new £200,000 car.
 

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Re: 4.4L V8 Engine Failures (napster)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>napster</b> »</i></TD></TR><TR><TD CLASS="quote">Also, Noble are using this V8 on their new M600 car. I am sure they looked at this V8 under a microscope before deciding to use it in their new £200,000 car.</TD></TR></TABLE><p>If Noble installed a factory stock 4.4L in its M600 supercar then, yes, you would have a point.<p>However, the M600's 4.4L is twin-turbocharged so it's quite likely that the engine has had more than a few of its stock components tossed and has been beefed up considerably to handle the boost and the subsequent power output compared with the garden variety 4.4L that's found under the hood of either a S80 or an XC90. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/embeer.gif" BORDER="0">
 

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Re: 4.4L V8 Engine Failures (Dextrobrick)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Dextrobrick</b> »</i></TD></TR><TR><TD CLASS="quote"><p>If Noble installed a factory stock 4.4L in its M600 supercar then, yes, you would have a point.<p>However, the M600's 4.4L is twin-turbocharged so it's quite likely that the engine has had more than a few of its stock components tossed and has been beefed up considerably to handle the boost and the subsequent power output compared with the garden variety 4.4L that's found under the hood of either a S80 or an XC90. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/embeer.gif" BORDER="0"> </TD></TR></TABLE><p>Irrelevant...<p>The only relevant piece of info is whether or not the engine still has the counterbalance shaft of the same design.
 
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