BMW M3 Forum (E90 E92)

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


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing
 
PYSPEED
Post Reply
 
Thread Tools Search this Thread
      09-24-2012, 01:00 AM   #1
swamp2
Lieutenant General
swamp2's Avatar
United_States
214
Rep
10,201
Posts

 
Drives: E92 M3
Join Date: Sep 2006
Location: San Diego, CA USA

iTrader: (1)

High load, high rpm whine - tips identifying this noise?

During a great weekend mountainside flogging I noticed a noise I have not heard before. Warm temps about mid 80s, four adult passengers, full tank of fuel, AC on, 8% grade. Thus at high load and then at high rpm, perhaps in the 6-8k range I noticed a clearly audible, but not loud, dullish squeaking sound. Loosely sounded like it was coming from the dash. My best guess was a belt. I certainly should have experimented with AC off but had to focus on the road! I am hoping someone else has had a similar occurrence and found the cause and fix for it.

Last edited by swamp2; 09-26-2012 at 01:33 AM.
Appreciate 0
      10-07-2012, 04:53 PM   #2
impr
New Member
0
Rep
13
Posts

 
Drives: 2009 C63
Join Date: Mar 2012
Location: Vancouver, BC

iTrader: (0)

What gears is it occuring in, I had a high pitched whine only in first gear under load high rpms, it turned out my engine mounts were broken. Once they were replaced the whining sound went away.
Appreciate 0
      10-08-2012, 04:05 PM   #3
swamp2
Lieutenant General
swamp2's Avatar
United_States
214
Rep
10,201
Posts

 
Drives: E92 M3
Join Date: Sep 2006
Location: San Diego, CA USA

iTrader: (1)

I was getting this in 2nd and 3rd (M-DCT). Any idea if the engine mounts are easy to check visually without any disasembly? Thanks.
Appreciate 0
      10-08-2012, 04:12 PM   #4
FogCityM3
Lieutenant Colonel
FogCityM3's Avatar
36
Rep
1,747
Posts

 
Drives: M3 (E90)
Join Date: Feb 2012
Location: San Francisco

iTrader: (0)

Do you have an aftermarket pulley?
Appreciate 0
      10-13-2012, 02:49 AM   #5
swamp2
Lieutenant General
swamp2's Avatar
United_States
214
Rep
10,201
Posts

 
Drives: E92 M3
Join Date: Sep 2006
Location: San Diego, CA USA

iTrader: (1)

^ OEM pulleys. Thanks.
Appreciate 0
      10-28-2012, 03:45 AM   #6
swamp2
Lieutenant General
swamp2's Avatar
United_States
214
Rep
10,201
Posts

 
Drives: E92 M3
Join Date: Sep 2006
Location: San Diego, CA USA

iTrader: (1)

Bump. No one?
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 02:38 AM.




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