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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > a wobble or slight vibration



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      03-23-2011, 10:24 AM   #1
killakill
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a wobble or slight vibration

hey guys im noticing i have a slight wobble that i can feel when the car is idling, it goes away above 1100 rpm. When i rev the car high and the cars rpm are going down right at 1000rpm i can feel the wobble, it seems like its a side to side wobble, then at lower rpms i can feel it as well. Please let me what you guys think?

thanks in advance
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      03-23-2011, 10:42 AM   #2
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You're not alone. I feel that too if i'm interpreting your post correctly. If someone could explain it and provide a fix (if it's a problem) then I would appreciate that
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      03-24-2011, 01:25 AM   #3
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Rough idle is caused by many things, improper detination of fuel (spark plugs, coil packs, bad fuel, bad fuel injectors), improper lubrication, or your timing being off.

Change your oil and your spark plugs. It should solve your issue.

Do NOT run your oil for 15k miles.
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      03-24-2011, 09:33 AM   #4
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I was just about to say maybe plugs or a coil going bad. Could be fuel related too, maybe fuel filter?
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      03-24-2011, 09:39 AM   #5
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coils

Quote:
Originally Posted by benzo23 View Post
I was just about to say maybe plugs or a coil going bad. Could be fuel related too, maybe fuel filter?
wouldnt a bad coil or plug throw a code? i dont have any codes
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      03-24-2011, 09:50 AM   #6
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Quote:
Originally Posted by killakill View Post
wouldnt a bad coil or plug throw a code? i dont have any codes
Not necessarily, a buddy of mine has a 2007 328i and he had some rough shaking at idle and it would almost choke out with a little gas, he had no CEL or anything on the dash and it was coil pack 6 that had gone out. Its easy to test which one is bad.
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      03-24-2011, 09:51 AM   #7
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Quote:
Originally Posted by benzo23 View Post
Not necessarily, a buddy of mine has a 2007 328i and he had some rough shaking at idle and it would almost choke out with a little gas, he had no CEL or anything on the dash and it was coil pack 6 that had gone out. Its easy to test which one is bad.
could u shed some light on how to check if the coil is bad?

thanks
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