Intermittent semi-rough idle. Hesitant vibration around 57-60MPH

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Old 01-21-2010, 12:10 AM
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Question Intermittent semi-rough idle. Hesitant vibration around 57-60MPH

Hello all,

I have an 02 Type S with 160,000 miles. It will idle semi rough (slight but not troublesome vibration) when coming to a stop at intermittent times. It will also, almost every time, have heavy vibration (feels like its not getting fuel) around 57-60 MPH. This vibration at idle also happens in neutral as well and the 57-60 MPH vibration in any selectable gear for that range. Otherwise at every other speed except randomly sometimes at idle it performs flawlessly. ECU has recorded no codes. I have replaced plugs and air filter. I have not replaced the fuel filter, does this sound typical of a clogged filter on this machine? Could there be an odd vacuum or emissions control problem i am overlooking? Thanks for your help in advance.

Jesse
Old 01-21-2010, 12:40 PM
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Check your motor mounts.
Old 01-21-2010, 01:22 PM
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Originally Posted by fsttyms1
Check your motor mounts.
Good idea! Thank you very much. I will inspect them this weekend. Is there any specific one i should take a closer look at? One that takes more stress than the others?

Thanks again.

Jesse
Old 01-21-2010, 02:13 PM
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Passenger side and Front. These mounts have a typical life span of 50k or so.
Old 01-21-2010, 02:14 PM
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This thread has a little info on what to look for and how to quick test the front one

https://acurazine.com/forums/2g-tl-problems-fixes-117/when-replace-motor-mount-609085/
Old 01-31-2010, 08:53 PM
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I was getting the same problem. When I took it in to the dealer they told me it was my TPS sensor was bad. I'm not sure if yours is working. Good luck.
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