BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > M3 (E90 / E92 / E93) > General M3 Forum (E90 + E92 + E93)
 
BPM Sport
Post Reply
 
Thread Tools Search this Thread
      04-20-2013, 09:51 AM   #1
Majin Buu
Banned
3
Rep
324
Posts

 
Drives: M3
Join Date: Apr 2013
Location: Canada

iTrader: (0)

M3 weird groaning sound

Hi. I have a 2008 E90 M3 sedan, manual, edc with nav/idrive. Had it for a bit over a year now. A few months ago in winter I began to notice a weird groaning sound. It only occurs when the engine rpm is about 1700 to 2000 rpm. Doesn't matter if the car is moving or not, or if the tranny is in gear or neutral. It happens whether the engine is revving up or revving down. It happens on a regular basis when I start the car up when it's cold. But after about 5-10 min of driving the sound goes away. You can see it at the 10, 23, 28, 39, 53, and 64 second mark here and at the 9, 12, 20, 30, 35, and 38 second mark here. Any thoughs on the cause of this? I'm thinking exhaust leak, but I checked under the car with the engine off and there doesn't appear to be any visible damage or rust to it. It's the stock exhaust.
Appreciate 0
      04-20-2013, 10:23 AM   #2
1MOREMOD
2014 Track Days - 11|Ridge 1:52:24|Pacific 1:35:72
1MOREMOD's Avatar
United_States
174
Rep
13,014
Posts

 
Drives: Race car->
Join Date: Mar 2009
Location: check your mirrors

iTrader: (5)

try getting under it with it running. i had to do this to track down an annoying vibration that ended up being the midpipe touching the crossmember. aftermarket though.
__________________

02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW exhaust|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs|
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 03:29 PM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST