Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Bimmer Tool Rental
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-19-2018, 09:33 PM
Member
 
Join Date: Apr 2011
Location: NEW YORK
Posts: 793
electricalserv x5 is on a distinguished road
one bad park plug.....

I guess I have a bad cylander .its the first on the passger side......it's just black and caky compared to the others........I have a picture on the FB page ....any thoughts?
__________________
2006 4.8IS
65K MILES
PURCHASED 7/13
Reply With Quote

Sponsored Links

  #2  
Old 05-20-2018, 10:45 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 4,645
andrewwynn is on a distinguished road
I had a bad plug. That was the cause of the gunky cylinder. Change it and take a look after 100miles.

The plugs were single electrode I went back to OEM NGK four electrode.


Sent from my iPhone using Tapatalk Pro
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #3  
Old 05-20-2018, 03:15 PM
Member
 
Join Date: Apr 2011
Location: NEW YORK
Posts: 793
electricalserv x5 is on a distinguished road
Quote:
Originally Posted by andrewwynn View Post
I had a bad plug. That was the cause of the gunky cylinder. Change it and take a look after 100miles.

The plugs were single electrode I went back to OEM NGK four electrode.


Sent from my iPhone using Tapatalk Pro
Thanks , I changed mine at least 3 times and it seems that that front passenger side plug always has shoot on it ......the 4.8is is standard with the single electrode.....NGK lazer iridimi ...
__________________
2006 4.8IS
65K MILES
PURCHASED 7/13
Reply With Quote
  #4  
Old 05-20-2018, 04:31 PM
Member
 
Join Date: Nov 2014
Location: SF Bay Area
Posts: 889
oldskewel is on a distinguished road
A compression test would help a lot in the diagnosis.

Good to hear you've already changed plugs, are sticking to the specified plugs, and the problem still comes back. That rules out a lot of the easy fixes.
__________________
2001 X5 3.0i, 190k miles, AT, owned since 2014
Reply With Quote
  #5  
Old 05-20-2018, 11:50 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 4,645
andrewwynn is on a distinguished road
All six of wife's single electrode looked covered in grease after 30,000 miles even less (and causing misfires bad enough for faiksafe). My 4-electrode were dusty and dry after 50-70,000 changed as preventative measures I'm sticking with 4-electrode. We do have the 3.0 so the 8s may do better with the singles.

"What he said" wrt the compression test. If one cylinder acting different. Compression test is the go-to move. Also swap a plug and coil pack from a different cylinder to see if the problem relocates.
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #6  
Old 05-21-2018, 05:37 AM
Member
 
Join Date: Jun 2013
Location: Virigina, USA
Posts: 2,078
StephenVA is on a distinguished road
Black and dry is a sure sign of poor combustion. Wet and dark is an oil control related issue. Since I assume you do not have access to a lab scope, I would recommend replacing the coil on that cyl or at the least swap it for another location to see if the "issue" moves with the coil.
Issues Questions - Cyl misfires under load? Hard starting on hot soak? Idle stable or "hunting"?
Ignition Issues - Coil or plug (Or both) Don't forget about connection failures
Fuel delivery - Injector leaking, stays open (drips or incomplete spray pattern), clean system with injector cleaner. Better? Y/N, No move to injector removal and ultrasonic cleaning and new seals.

Quick tests
With a digital volt meter read the resistance of each plug (one higher than the others?)
Connect a scanner to the OBDll port, display live readings. Before starting check the stored codes and see if there is any indication of engine cyl issues.
Disconnect the problem cyl coil for 15 secs and record RPM drop, then do the others on the same bank. 10% greater difference from any location? Note O2 Sensor readings during tests. Any wide variations between cyls when coil is killed?
You can alway do the same test with each injector.
Clear codes when complete as the module will record cyl misfires.

The single file wire plugs will provide a better ignition burn than any given multiple prong plug in our applications 6/8. Those reporting otherwise have ign issues, fuel issues, or oil control problems, all of which can be typical symptoms of aging systems. Time to clean combustion chambers, injectors, replace coils, etc. Lab scope, 4 gas meter, and proper diagnostics will prove out everytime.

Helpful?
__________________

2005 X5 4.8IS
The Blue ones are always FASTER....

Current Garage:
2005 X5 4.8is
2002 M5 TiSilver
2003 525iT
1998 528i
Former Garage Stable Highlights
2004 325XiT Sport
1973 De Tomaso Pantera, L Model
1970 Dodge Challenger T/A 4 sp Alpine White
1970 Dodge Challenger T/A 4 sp GoManGo Green
1971 Dart Sport, “Dart Light” package
1969 Road Runner 383
1968 Ply Barracuda 340S FB Sea-foam Green
Reply With Quote
  #7  
Old 05-21-2018, 07:11 PM
Member
 
Join Date: Apr 2011
Location: NEW YORK
Posts: 793
electricalserv x5 is on a distinguished road
Quote:
Originally Posted by StephenVA View Post
Black and dry is a sure sign of poor combustion. Wet and dark is an oil control related issue. Since I assume you do not have access to a lab scope, I would recommend replacing the coil on that cyl or at the least swap it for another location to see if the "issue" moves with the coil.
Issues Questions - Cyl misfires under load? Hard starting on hot soak? Idle stable or "hunting"?
Ignition Issues - Coil or plug (Or both) Don't forget about connection failures
Fuel delivery - Injector leaking, stays open (drips or incomplete spray pattern), clean system with injector cleaner. Better? Y/N, No move to injector removal and ultrasonic cleaning and new seals.

Quick tests
With a digital volt meter read the resistance of each plug (one higher than the others?)
Connect a scanner to the OBDll port, display live readings. Before starting check the stored codes and see if there is any indication of engine cyl issues.
Disconnect the problem cyl coil for 15 secs and record RPM drop, then do the others on the same bank. 10% greater difference from any location? Note O2 Sensor readings during tests. Any wide variations between cyls when coil is killed?
You can alway do the same test with each injector.
Clear codes when complete as the module will record cyl misfires.

The single file wire plugs will provide a better ignition burn than any given multiple prong plug in our applications 6/8. Those reporting otherwise have ign issues, fuel issues, or oil control problems, all of which can be typical symptoms of aging systems. Time to clean combustion chambers, injectors, replace coils, etc. Lab scope, 4 gas meter, and proper diagnostics will prove out everytime.

Helpful?
Thanks a lot , I replaced the coils last year .....with delta from BMW........the engine is running good, It's the cylinder right next to oil fill cap , it might be from oil spills.......the plug is dry and caky....black.
__________________
2006 4.8IS
65K MILES
PURCHASED 7/13
Reply With Quote
  #8  
Old 05-22-2018, 12:23 PM
bcredliner's Avatar
.1 decrease 0-60 time = $1000 & DIY
 
Join Date: Jun 2008
Location: Little Elm,Texas. (40 minutes North of Dallas)
Posts: 6,963
bcredliner is on a distinguished road
No error codes?
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas
Reply With Quote
  #9  
Old 05-28-2018, 02:50 PM
Member
 
Join Date: Apr 2011
Location: NEW YORK
Posts: 793
electricalserv x5 is on a distinguished road
Quote:
Originally Posted by bcredliner View Post
No error codes?
No none , I had a code with oil cap loses , 1353. no codes ,with the new spark plug and I ran the x5 for 500 miles and pulled the spark plug today, it looked sutty and black .. I cleaned it up and check the connection for the coil and the plug into the coil......feels a little better... I will check pluga agin soon.
__________________
2006 4.8IS
65K MILES
PURCHASED 7/13
Reply With Quote
  #10  
Old 05-29-2018, 08:38 AM
Member
 
Join Date: Jun 2013
Location: Virigina, USA
Posts: 2,078
StephenVA is on a distinguished road
congrats! Hopefully it is/was a loose connections. Real weird it did not pop a code as a misfire.
__________________

2005 X5 4.8IS
The Blue ones are always FASTER....

Current Garage:
2005 X5 4.8is
2002 M5 TiSilver
2003 525iT
1998 528i
Former Garage Stable Highlights
2004 325XiT Sport
1973 De Tomaso Pantera, L Model
1970 Dodge Challenger T/A 4 sp Alpine White
1970 Dodge Challenger T/A 4 sp GoManGo Green
1971 Dart Sport, “Dart Light” package
1969 Road Runner 383
1968 Ply Barracuda 340S FB Sea-foam Green
Reply With Quote
Reply

Bookmarks

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 12:18 AM.
vBulletin, Copyright 2019, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.