E90Post
 


The Tire Rack
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Help diagnose this sound *sound clip included*



Reply
 
Thread Tools Search this Thread
      08-10-2015, 09:09 PM   #1
Game
------
Game's Avatar
8154
Rep
10,628
Posts

Drives: G80 LCI, G87 (sold)
Join Date: Aug 2010
Location: Chicago'ish

iTrader: (25)

Help diagnose this sound *sound clip included*

This past Friday I had my downpipes installed and switched over to JB4 map 2. Car runs strong, no codes/issues however after I push it, the next time at idle I hear some knocks/thuds that I never had an issue with in map 1.

The video is not the best and you'll need to raise the volume. Excuse the Nav tray being annoying.



__________________
Appreciate 0
      08-11-2015, 09:37 PM   #2
Game
------
Game's Avatar
8154
Rep
10,628
Posts

Drives: G80 LCI, G87 (sold)
Join Date: Aug 2010
Location: Chicago'ish

iTrader: (25)

Changed to map 5 and same sound issue when the car warms up at idle. Also have noticed that my Turbosmart BOV doesn't seem to open as fully as before.

Spark plugs and coils have not been replaced in the 3.5 years/22k miles I've owned the car.

Possible incorrect sensor install during downpipe install?
__________________

Last edited by Game; 08-11-2015 at 10:04 PM..
Appreciate 0
      08-11-2015, 10:02 PM   #3
Game
------
Game's Avatar
8154
Rep
10,628
Posts

Drives: G80 LCI, G87 (sold)
Join Date: Aug 2010
Location: Chicago'ish

iTrader: (25)



Notice the small rumbling sound.
__________________
Appreciate 0
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



All times are GMT -5. The time now is 06:39 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
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