Multiple Misfire Cause? - Mercedes-Benz Forum

Go Back   Mercedes-Benz Forum > Mercedes-Benz Vans/Trucks/SUV/Others > W163 M-Class
New User? Register - Forgot Password

BenzWorld.org is the premier Mercedes-Benz Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 01-13-2010, 06:38 PM   #1 (permalink)
BenzWorld Junior Member
 
Date registered: Mar 2008
Vehicle: 2001 ML 320
Location: NY
Posts: 41
Multiple Misfire Cause?

I turned on my car a few days ago, there was a hard start. The car would increase rpm then drop and eventually shut off.

I used the obdII and picked up codes for Misfire in different cylinders and multiple misfire.

Initially, since the weather here in NY has been freezing, I thought maybe water in fuel so I added Water Removal.

That did not work, and changed the spark plugs. I still get the same codes. Any ideas or solutions?

Thanks
brklynrep88 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-13-2010, 07:44 PM   #2 (permalink)
BenzWorld Junior Member
 
Date registered: Mar 2008
Vehicle: 2001 ML 320
Location: NY
Posts: 41
can a poor or malfunctioning fuel pressure regulator cause multiple misfire?? thanks
brklynrep88 is offline   Reply With Quote
Old 01-13-2010, 07:48 PM   #3 (permalink)
BenzWorld Elite
 
Witek_M's Avatar
 
Date registered: Sep 2008
Location: Dallas, Texas
Posts: 3,499
Quote:
Originally Posted by brklynrep88 View Post
can a poor or malfunctioning fuel pressure regulator cause multiple misfire?? thanks
Yes it can. But so are hundred other things. What specific codes are you getting?

http://www.benzworld.org/forums/w163...ml#post3329300
__________________
1972 280SEL 4.5
1999 ML320
2000 E320
Witek_M is offline   Reply With Quote
Old 01-13-2010, 08:49 PM   #4 (permalink)
BenzWorld Junior Member
 
Date registered: Mar 2008
Vehicle: 2001 ML 320
Location: NY
Posts: 41
Misfire for each of the Cylinder 1/2/3/4/6 and multiple.random misfire
Each time I read the codes three cylinders would come up in the codes, I took it the reading a few times
brklynrep88 is offline   Reply With Quote
Old 01-14-2010, 05:02 AM   #5 (permalink)
BenzWorld Elite
 
Michael Pillay's Avatar
 
Date registered: Oct 2003
Location: Swartz Creek, MI
Posts: 4,683
Have you done the fuel filter update yet? Also noticed you did not mention changing the wires. What is your mileage?
__________________
Mike
Michael Pillay is offline   Reply With Quote
Old 01-14-2010, 10:17 AM   #6 (permalink)
BenzWorld Junior Member
 
Date registered: Mar 2008
Vehicle: 2001 ML 320
Location: NY
Posts: 41
current mileage is 70,000.
fuel filter has been updated, and was changed within the last 6 months
fuel pump also has been changed with last year
brklynrep88 is offline   Reply With Quote
Old 01-14-2010, 10:58 AM   #7 (permalink)
BenzWorld Elite
 
Witek_M's Avatar
 
Date registered: Sep 2008
Location: Dallas, Texas
Posts: 3,499
Concentrate on things that affect all cylinders. It is unlikely that all coils/wires went bad overnight.

Fuel pressure? Delivery volume.
Fuel contamination. Diesel in tank.
Large vacuum leak.
Bad MAF.
Stuck open EGR valve.
Plugged up converters.

Do you have means of looking at live data stream?
Witek_M is offline   Reply With Quote
Reply

  Mercedes-Benz Forum > Mercedes-Benz Vans/Trucks/SUV/Others > W163 M-Class

Bookmarks



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Similar Threads
Topic Author Forum Replies Last Post
Need your help - misfire - CEL comes on, now off, and no misfire Magnified W220 S-Class 1 06-16-2010 11:26 AM
Multiple issues dsw7283 W124 E,CE,D,TD Class 3 07-06-2009 02:25 PM
2005 c240 misfire on multiple cylinders jasonrcooke W203 C-Class 7 12-02-2008 01:42 PM
multiple problems 2003 s600 W220 S-Class 9 04-29-2008 01:19 PM
Multiple photos ghitos73 Test 0 04-30-2006 05:34 PM


All times are GMT -7. The time now is 12:49 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.1

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.