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 > X Series > X3 E83 (2004 - 2010)

X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

Reply
 
Thread Tools Display Modes
  #1  
Old 11-13-2012, 02:43 AM
ncord ncord is offline
Officially Welcomed to the 'Fest
Location: ontario canada
 
Join Date: Nov 2009
Posts: 164
Mein Auto: 2006 X3
06 X3 misfires

When I accellerate to merge etc.the engine sounds good till just before it shifts from 3rd to 4th gear (auto trans.).Then it seems to mis fire a bit until it shifts.I put in a bottle of seafoam,and have just replaced the plugs .Plug #2 had oil all over it ,even up the sides of it.
Cleaned up the oil & installed new plug ,but car still misfires with hard accelleration at about 4000 rpm.in 3rd gear.With reving in park or regular accell.it runs good.What could it be???
Car is an 06 3.0 with 86k.miles (car orig.from USA)
Reply With Quote
Ads by Google
  #2  
Old 11-13-2012, 04:25 AM
jdauria jdauria is offline
Officially Welcomed to the 'Fest
Location: Arlington, VA / NY
 
Join Date: Oct 2012
Posts: 753
Mein Auto: E39 ///M5
Quote:
Originally Posted by ncord View Post
When I accellerate to merge etc.the engine sounds good till just before it shifts from 3rd to 4th gear (auto trans.).Then it seems to mis fire a bit until it shifts.I put in a bottle of seafoam,and have just replaced the plugs .Plug #2 had oil all over it ,even up the sides of it.
Cleaned up the oil & installed new plug ,but car still misfires with hard accelleration at about 4000 rpm.in 3rd gear.With reving in park or regular accell.it runs good.What could it be???
Car is an 06 3.0 with 86k.miles (car orig.from USA)
That sounds like you need to replace the valve gasket cover if your getting oil up in the plugs.

Throwing any codes? If so, list them
__________________
2000 ///M5 ///M Registry
Oxford Green Metallic II (430) | Caramel Nappa Leather (M3CR) | Brushed Aluminum "Stahlgrau"|
Square Style 65's - Pilot Super Sports
Tuning Tech Tune by Frank Smith (http://www.tuningtechfs.com/)
Tuning Tech IAT Kit
Supersprint Headers - July'14
SuperSprint X-Pipe
Eisenmann Race 4x83mm
DINAN Front Strut Brace
Storm Motorwerks Products

2006 X3 3.0i M-Sport | Silver Grey | Terracotta | AT | Navigation | Premium Pkg | Cold Weather Pkg | AFE |
Reply With Quote
  #3  
Old 11-13-2012, 05:04 AM
brewder brewder is offline
Officially Welcomed to the 'Fest
Location: Allentown PA Area
 
Join Date: May 2010
Posts: 585
Mein Auto: 2011 328i xDrive
Quote:
Originally Posted by ncord View Post
When I accellerate to merge etc.the engine sounds good till just before it shifts from 3rd to 4th gear (auto trans.).Then it seems to mis fire a bit until it shifts.I put in a bottle of seafoam,and have just replaced the plugs .Plug #2 had oil all over it ,even up the sides of it.
Cleaned up the oil & installed new plug ,but car still misfires with hard accelleration at about 4000 rpm.in 3rd gear.With reving in park or regular accell.it runs good.What could it be???
Car is an 06 3.0 with 86k.miles (car orig.from USA)
My '08 does something similar... It sometimes feels like it "hesitates" but only under heavy acceleration. I'm due for new plugs in roughly 25k miles, but may replace them and the ignition coils much sooner.. Someone also has suggested replacing the O2 sensors, but those are expensive and should last way past 100k miles..

My plan is to keep running Techron through the system every could thousand miles (no seafoam), then replace the plugs..then the coils.
__________________
//Brew

('11 E92 328i xDrive - Deep Sea Blue - New to Me)
('07 E92 328xi - Space Gray - still in the family)
Reply With Quote
  #4  
Old 11-13-2012, 07:59 AM
mrsanchez3 mrsanchez3 is offline
Registered User
Location: Midwest
 
Join Date: Oct 2012
Posts: 49
Mein Auto: '05 X3 3.0i
Quote:
Originally Posted by brewder View Post
My '08 does something similar... It sometimes feels like it "hesitates" but only under heavy acceleration. I'm due for new plugs in roughly 25k miles, but may replace them and the ignition coils much sooner.. Someone also has suggested replacing the O2 sensors, but those are expensive and should last way past 100k miles..

My plan is to keep running Techron through the system every could thousand miles (no seafoam), then replace the plugs..then the coils.
Why not seafoam?
Reply With Quote
  #5  
Old 11-13-2012, 08:25 AM
brewder brewder is offline
Officially Welcomed to the 'Fest
Location: Allentown PA Area
 
Join Date: May 2010
Posts: 585
Mein Auto: 2011 328i xDrive
Quote:
Originally Posted by mrsanchez3 View Post
Why not seafoam?
Because I haven't found a single person on Bimmerfest that speaks highly of it for our cars... Not to mention that BMW recommends Techron as the fuel system cleaner of choice. So i'm sticking with that.
__________________
//Brew

('11 E92 328i xDrive - Deep Sea Blue - New to Me)
('07 E92 328xi - Space Gray - still in the family)
Reply With Quote
  #6  
Old 11-13-2012, 08:29 AM
mrsanchez3 mrsanchez3 is offline
Registered User
Location: Midwest
 
Join Date: Oct 2012
Posts: 49
Mein Auto: '05 X3 3.0i
Quote:
Originally Posted by brewder View Post
Because I haven't found a single person on Bimmerfest that speaks highly of it for our cars... Not to mention that BMW recommends Techron as the fuel system cleaner of choice. So i'm sticking with that.
Gotcha... Thank you... I haven't used any of this stuff... I've actually never used fuel cleaner on any car I've ever had... So, I was wondering if you'd used both... Thanks!
Reply With Quote
  #7  
Old 11-13-2012, 09:00 AM
x3brian x3brian is offline
Officially Welcomed to the 'Fest
Location: Sacramento CA
 
Join Date: Jan 2011
Posts: 989
Mein Auto: X3
I am going to butcher the explanation but one of the users on here recently gave a through reason why seafoam doesn't work with our engine. I will have to find the thread when I have a moment but it had something to do with our engine design is not compatible with what seafoam is designed to do. It won't harm anything but it won't help either.
Reply With Quote
  #8  
Old 11-13-2012, 02:36 PM
ncord ncord is offline
Officially Welcomed to the 'Fest
Location: ontario canada
 
Join Date: Nov 2009
Posts: 164
Mein Auto: 2006 X3
No codes,and oil is only on one plug.I was wondering if it was a bad plug coil
Reply With Quote
  #9  
Old 11-14-2012, 08:13 PM
halltristan's Avatar
halltristan halltristan is offline
Bimmer Enthusiast
Location: Tennessee
 
Join Date: Feb 2012
Posts: 652
Mein Auto: 325i and X3
Quote:
Originally Posted by brewder View Post
My '08 does something similar... It sometimes feels like it "hesitates" but only under heavy acceleration. I'm due for new plugs in roughly 25k miles, but may replace them and the ignition coils much sooner.. Someone also has suggested replacing the O2 sensors, but those are expensive and should last way past 100k miles..

My plan is to keep running Techron through the system every could thousand miles (no seafoam), then replace the plugs..then the coils.
It doesn't make sense to replace the coils. They're like light bulbs, either they're on or off. There is no in between.
__________________

Member No. 470379
Reply With Quote
  #10  
Old 11-23-2012, 02:38 PM
ncord ncord is offline
Officially Welcomed to the 'Fest
Location: ontario canada
 
Join Date: Nov 2009
Posts: 164
Mein Auto: 2006 X3
Replaced VCG and spark plug seals .Cleaned plug that had oil in tube ,and cleaned MAF sensor with spray.Car runs great until I accelerate up hills between 3 & 4000 rpm
and then it misfires.Idles smooth and is good on acceleration below that.What could it be???

Last edited by ncord; 11-24-2012 at 10:40 AM.
Reply With Quote
  #11  
Old 11-25-2012, 05:44 AM
fivepointnine fivepointnine is offline
Officially Welcomed to the 'Fest
Location: Olympia, Wa
 
Join Date: Jul 2011
Posts: 345
Mein Auto: BMW X3, Mercedes CLK500
since it is just one cylinder that you are having the issue with, there is only a few things it could be...I would put money on a bad coil pack, possibly the coil connector?
Reply With Quote
  #12  
Old 11-25-2012, 07:45 AM
ncord ncord is offline
Officially Welcomed to the 'Fest
Location: ontario canada
 
Join Date: Nov 2009
Posts: 164
Mein Auto: 2006 X3
It was one cylinder that had oil in it but I changed the VCG & plug seals,so that should be good now.But it is still missing when under load around 4000rpm.
Reply With Quote
  #13  
Old 11-25-2012, 08:12 AM
X3-terrestrial's Avatar
X3-terrestrial X3-terrestrial is offline
Aficionado
Location: N.Miss - Memphis,TN Area
 
Join Date: Aug 2008
Posts: 2,630
Mein Auto: '05 X3, '95 M3, '89 MkI
Hesitation under load and no CEL, could be a sign of gas starvation. It could be just a clogged fuel filter or a fuel pump going bad. But in order to diagnose a fuel pump, you need special equipment to measure fuel pressures.
Also O2 sensors have been known to produce hesitation under acceleration when they start to fail, although not triggering a CEL.
__________________
"If everything seems under control, you're just not going fast enough"
-Mario Andretti.

___________________
River City Bimmers Chapter
2005 X3 3.0i ZPP, Htd seats, Htd strng, Black Sapphire on Terracotta.
1995 ///M3 Coupe, Lux, MT, Htd seats, Cosmos Black on Black.

Last edited by X3-terrestrial; 11-25-2012 at 08:55 AM.
Reply With Quote
  #14  
Old 11-25-2012, 08:54 AM
X3-terrestrial's Avatar
X3-terrestrial X3-terrestrial is offline
Aficionado
Location: N.Miss - Memphis,TN Area
 
Join Date: Aug 2008
Posts: 2,630
Mein Auto: '05 X3, '95 M3, '89 MkI
Found this article:
http://www.aa1car.com/library/fuel_pump_diagnose.htm
__________________
"If everything seems under control, you're just not going fast enough"
-Mario Andretti.

___________________
River City Bimmers Chapter
2005 X3 3.0i ZPP, Htd seats, Htd strng, Black Sapphire on Terracotta.
1995 ///M3 Coupe, Lux, MT, Htd seats, Cosmos Black on Black.
Reply With Quote
  #15  
Old 12-04-2012, 10:40 AM
ncord ncord is offline
Officially Welcomed to the 'Fest
Location: ontario canada
 
Join Date: Nov 2009
Posts: 164
Mein Auto: 2006 X3
Do you think it could be Transmission problems???
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X3 E83 (2004 - 2010)
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 12:00 AM.


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