Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E90/E91/E92/E93 (2006 - 2013)

E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

Reply
 
Thread Tools Display Modes
  #1  
Old 10-13-2013, 05:06 PM
WhiteFury's Avatar
WhiteFury WhiteFury is offline
Booooost!
Location: NJ
 
Join Date: Sep 2013
Posts: 243
Mein Auto: 2011 335i N55
Vanos system damaged? Pictures inside.

So many of you may know I've had persistent misfires of last couple weeks after doing an intake valve cleaning job.

My misfires were on cylinder one, two, and five.

When I moved the injector from cylinder 1 into cylinder three the misfires went away and never returned. Cylinder five continued to misfire so I moved the spark plug into cylinder two and then the misfire had followed that.

After doing that and having a misfire on cylinder two now, I replaced the spark plug with a brand-new factory OEM one.

Then it went away for a few days and then it was still misfiring randomly when I would try to go wide-open throttle. Almost as if the timing was off.

I once again got a misfire on cylinder number five last night when going wide-open throttle in third gear around 3500 RPMs.

A member on The other forums had advised me that the grinding sound I heard When I press the start button to turn the engine over while I was cleaning the valve could have been arm or something broken on the Vanos system.

When I remove the valve cover today to inspect, it looks as if there is an arm that is supposed to clip through a guide and lock into place. this arm seems like it's pulled back into the retaining clip as seen in the picture. It also looks like the Vanos system is operated by hydraulic pressure coming up through the sensor which in turn rotates the sprocket which turns the variable valve timing cam.

It may be hard to tell from the pictures but does this look normal? Also the arm coming from the top going over to the sensor seems weak and when I press on it it moves and also feels like it's bending a little bit is this normal?

Could this be causing all these problems I'm having?

I posted pictures on post number two.
__________________


JB4 Stage 2 | Injen CAI | BMW PE | AR Catless DP | Alpina TCU Flash | Eibach Pro Kit | Custom TCKline Koni's | 19" RS7 Wheels | DWS Tires

Last edited by WhiteFury; 10-13-2013 at 05:08 PM.
Reply With Quote
Ads by Google
  #2  
Old 10-13-2013, 05:07 PM
WhiteFury's Avatar
WhiteFury WhiteFury is offline
Booooost!
Location: NJ
 
Join Date: Sep 2013
Posts: 243
Mein Auto: 2011 335i N55
Vanos system damaged? Pictures inside.

Click image for larger version

Name:	ImageUploadedByBimmerApp1381709243.419511.jpg
Views:	147
Size:	174.5 KB
ID:	401954

Click image for larger version

Name:	ImageUploadedByBimmerApp1381709254.587760.jpg
Views:	143
Size:	138.9 KB
ID:	401955

Click image for larger version

Name:	ImageUploadedByBimmerApp1381709261.436492.jpg
Views:	161
Size:	195.8 KB
ID:	401956
__________________


JB4 Stage 2 | Injen CAI | BMW PE | AR Catless DP | Alpina TCU Flash | Eibach Pro Kit | Custom TCKline Koni's | 19" RS7 Wheels | DWS Tires
Reply With Quote
  #3  
Old 10-13-2013, 05:43 PM
CALWATERBOY's Avatar
CALWATERBOY CALWATERBOY is offline
Officially Welcomed to the 'Fest
Location: San Francisco
 
Join Date: Aug 2009
Posts: 10,009
Mein Auto: 2009 E93 N54
Hard to say - you're much better positioned for a knowledgeable answer at E90POST and N54TECH
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E90/E91/E92/E93 (2006 - 2013)
Today's Posts Search
Thread Tools
Display Modes

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 On



Forum Jump


All times are GMT -7. The time now is 11:19 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms