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2012 CTS
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5 Posts
Discussion Starter #1
I have a 2012 CTS4 Luxury that has recently started to "rumble/vibrate" under slight throttle load at around 60 mph. It lasts for a couple of seconds and seems to go away. It feels like a possible transmission issue. The car has 112K miles on it, much of it highway. I just got a tune-up (new plugs, etc), but that didn't seem to help. I haven't taken it to a dealer for diagnosis, yet. Is the transmission about to go out? Any ideas? Thanks!
 

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2011 CTS Coupe FE3, 2003 Thunderbird, Gone 2013 ATS, 02 Deville
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1,873 Posts
it may be the transmission MOUNT or engine mounts. Have you ever had any of them replaced?
 

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2011 CTS Coupe FE3, 2003 Thunderbird, Gone 2013 ATS, 02 Deville
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1,873 Posts
Also, check all the drive-shaft bolts for tightness.
 

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Go ahead, blame me. Everybody does 🙄
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10,100 Posts
Agree with all the above, but also wouldn't rule out tranny shudder.
 
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