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Discussion Starter · #1 ·
I'm experiencing some shutter issues from engine/trans when at around 1500-1800 rpm. It feels like a bad engine mount, but they look good. I have my suspicions but am also looking for input. Anyone have any thoughts?
 

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4 engines and 3 transmissions in the North American market segment over the 2003-2014 GenI lifecycle, which is yours? You're noted as coming from the North American market segment and you have a 2007 from the other 2 posts, that makes this car a 3.2 or a 4.4 but we should not have to guess (engine mounts are different between the two).

Signature link if you're accessing Swedespeed via the web- https://forums.swedespeed.com/profile.php?do=editsignature , add model year and powertrain in the body of all your future posts if not.


*In the meantime, is this a 3.2 or a 4.4?
 

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Discussion Starter · #3 ·
Sorry, I'm new to this and very green!

It's a 2007 xc 90 V8, (B8444S), so it is a 4.4

When I purchased the car in the winter, I noticed a slight shutter, but was told from the seller it was a bad engine mount. Since I got the car at a reasonable price, I rolled with it. Now that it's warmed up, the shutter seems to have gotten worse. Before diving in and ordering a ton of parts to replace the bad engine mounts, I brought it to our local mechanic (who specializes in German Autos) to look and confirm my suspicions. Unfortunately, he felt it was a Torque Convertor and told me to go to a transmission specialist to confirm this. I've talked to several transmission guys in our area and they all told me to go to a dealer and that they didn't want to touch it. The nearest Volvo dealer is 4 hours away, so I want to check all possible boxes to ensure it is indeed a torque converter. Some of the posts I've read earlier suggest doing a transmission flush or putting in additives to solve this problem. I'm still not entirely convinced it is the torque convertor, but not sure what else there is to look at.
 

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I'm having the exact same problem with the V8 I bought back in the winter. The local indy shop here in Louisville directed me to a transmission specialist that they use regularly. I call him up, told him that I had a 2006 Volvo XC90 V8, and he immediately started listing every symptom that I had with the shudder without even telling him why I was calling. He said it was definitely the torque converter, so mine is going in next week to be worked on.
 

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Sorry, I'm new to this and very green!

It's a 2007 xc 90 V8, (B8444S), so it is a 4.4

When I purchased the car in the winter, I noticed a slight shutter, but was told from the seller it was a bad engine mount. Since I got the car at a reasonable price, I rolled with it. Now that it's warmed up, the shutter seems to have gotten worse. Before diving in and ordering a ton of parts to replace the bad engine mounts, I brought it to our local mechanic (who specializes in German Autos) to look and confirm my suspicions. Unfortunately, he felt it was a Torque Convertor and told me to go to a transmission specialist to confirm this. I've talked to several transmission guys in our area and they all told me to go to a dealer and that they didn't want to touch it. The nearest Volvo dealer is 4 hours away, so I want to check all possible boxes to ensure it is indeed a torque converter. Some of the posts I've read earlier suggest doing a transmission flush or putting in additives to solve this problem. I'm still not entirely convinced it is the torque convertor, but not sure what else there is to look at.
If you are not convinced it is a torque converter, then do a flush at home with either the cooler line or drain/fill method since it is very affordable. Ironically, with many transverse mounted engine/transmission vehicles, bad mounts can cause a weird vibration or thump. The warmer temps make it worse because the already loose rubber becomes softer, allowing for more movement. Load on acceleration can also bring this out.

If you think it could be bad engine mounts, you can try to change the upper and front lower mount first since you have better access, to see if it changes the shutter vibration. Still cheaper than going to a shop to try to diagnose or to get the wrong diagnosis.

Last thought about the German shop, not sure what their specialty is, but most of the German cars, minus VWs, have their engine/transmission mounted inline, so those cars do not experience the same vibration with worn engine mounts. If you cannot do the transmission fluid work yourself, then purchase the right fluid, the o-rings/seals for the fill plug and drain plugs, print out instructions for the drain/fill method, and bring them to a shop. Find one that is willing to try doing it with you present.
 
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