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| 01-10-2022, 01:14 PM | #1 |
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New Member
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Hard Vibrations Over 2000RPM! Help!
After doing an oil/spark plug change I noticed hard vibrations and a faint thumping sound coming from somewhere in the car. This happens at idle and while moving but is worse when moving above 2000RPM. I originally thought the worst but the engine is smooth and idles stable and is still super responsive. No copper in the oil. I checked the motor mounts and they appear to be in good shape but I have not changed them yet. Guibo? Subframe? Carrier bearing? I'm at my wits end with trying to figure out what could be wrong. No warning lights and live data is all normal. Two indy shops have looked at it and said the vibrations are normal. They're not. Vibrations are felt in the seat and seem to be from the center of the car. Any suggestions are appreciated. 09 E92 M3.
 Last edited by geoffreyaugusto; 01-10-2022 at 01:50 PM.. |
| 01-13-2022, 10:00 PM | #3 |
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Field Marshal
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Rep 1,829
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Drives: '08 E92 M3
Join Date: Jul 2010
Location: Greenville, SC
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Driver's side engine mount.
Driveshaft center bearing. Wrong oil viscosity? Flat spotted tire(s). Thrown wheel weight(s). Transmission mount (rare). Driveshaft coupling guibo. Bent wheel. Loose axle half shaft. Exhaust rubbing floor. Serpentine belt tensioner.
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'08 E92 M3 DCT Melbourne Red/Bamboo Beige Leather/EDC/SSP Spec-R DCT clutch discs/SSP Pro-Gold DCT Fluid/Quaife LSD/3:45 Final Drive by Diffs Online/BE Bearings & ARP Bolts/Vibra Technics Engine Mounts/M3 World HFC X-Pipe/LUX H8 180/BPM Sport DCT Tune/PFC Z-Rated Pads/ECS Brass Brake Caliper Bushings/Alex Shop Solid Sub-frame Bushings/Motul 600/Tint
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