3G TL (2004-2008)
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3g TL. Issues. Really rough idle after motor mount swap

Old 03-05-2019, 08:36 PM
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3g TL. Issues. Really rough idle after motor mount swap

i just swapped out all of my motor mounts and tranny mounts a few days ago and my car has been idling really rough. I know it may take some time to break it but it seems really rough for new parts. Any suggestions?
Old 03-05-2019, 09:05 PM
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Is it actually running rough ( i.e. sputtering, bouncy idle, idles then stalls, etc.) or is it just vibrating noticeably more.
Old 03-05-2019, 09:07 PM
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The runs a lot smooth. It’s only while I’m stopped and in drive
Old 03-05-2019, 10:52 PM
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OEM mounts or "affordable" after market?
Old 03-05-2019, 11:01 PM
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Unfortunately oem was way over my budget so I went with the “affordable” type.
Old 03-05-2019, 11:17 PM
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Ok so back to the question posed...

Is it rough idle or excessive vibration at idle? They are different things.
Old 03-05-2019, 11:21 PM
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Excessive vibration would be the best way to describe it
Old 03-05-2019, 11:30 PM
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There's quite a few threads regarding this issue. I need to replace the rear and front mounts on my 04 TL soon. Saving for the OEM though.

https://goo.gl/krLs2s
Old 03-06-2019, 10:16 AM
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OEM and aftermarket has different rubber compound, therefore extra vibration is normal. This is why I highly recommend OEM mounts if you planning to keep the stock quality.
Old 03-06-2019, 10:39 AM
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womp womp womp. lesson learned.


If you want to go cheap, at least go with an OEM rear and aftermarket others to minimize vibrations into the cabin.


Live and let learn
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