Rough running! FICM the problem? - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 01-25-2011, 01:24 AM
Member
 

Join Date: Apr 2009
Posts: 78
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Rough running! FICM the problem?

Hey guys I have noticed that my 05 with 184k miles but only 4000 engine hours runs rough.. let me explain. Just for info I run a sct with the srl tune.. In the mornings when its cold it takes a while to start and a long time to warm up and it gets plugged in every night. I let it warm up atleast 5 mins before driving and even 10 mins after driving its not at normal operating temps. Also I have noticed that sometimes when its fully warmed up and I hammer down on it, the transmission while shift good and firm most of the time and have lots of power. and then sometimes the tranny shifts really sloppy and it doesnt seem to have its normal power. I think the last time i changed the oil the dealer must have put summer oil in it. Could it be the oil or do you think the FICM. When I bought it three months ago and had the computer updated since It hadn't been updated in years, my mechanic said that the ficm may not take the new tune. Well it drives fine most of the time and my mechanic said it must have taken it. COuld it still be the ficm. remeber i have an sct with a tune. Also an egr test was done when I bought it by my mechanic and he said it passed the test with flying colors, meaning it was not gummed up. also the turbo had to be taken off to replace an oil line and he said the turbo was clean also. Any ideas to what is making it speratically run abnormal. Thanks and sorry for the long write up
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 01-25-2011, 03:16 AM
Member
 

Join Date: Oct 2010
Posts: 63
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
You can try some fuel additive first diesel kleen is a good product. and you may want to get a fuel pressure gauge if your pressure is lower than 55psi you may start to have injector problems
Reply With Quote Quick reply to this message
  #3  
Old 01-25-2011, 06:44 AM
Powerstroke Techie

 

Join Date: Aug 2010
Location: Sassamansville, Pa
Posts: 9,729
Thanks: 90
Thanked 188 Times in 151 Posts
Feedback Score: 3 reviews
Anything under 45 psi fuel pressure can cause damage to the injectors.

Either you can or have your mechanic check the FICM.Fuel Press

You may be experiencing stiction, or have injector issues. You won't know unless you put in on a good diagnostic scan tool. If your due for a oil change anyway, switch out to a lighter oil and try some rev-x.

Without a good diagnostic scan tool, you might be throwing parts at it and hope to get lucky.

Did your mechanic physically remove the EGR valve to check for deposits? How about the turbo, did he disassemble the turbo to check unison ring and vanes?
Reply With Quote Quick reply to this message
  #4  
Old 01-25-2011, 08:16 AM
Member
 

Join Date: Apr 2009
Posts: 78
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Another question. Could it be the tune? Since it's really cold here in ky. Maybe with the winter diesel, the tune is too aggressive for the fuel quality/ cetane?
Reply With Quote Quick reply to this message
  #5  
Old 01-25-2011, 08:18 AM
Member
 

Join Date: Apr 2009
Posts: 78
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
But to answer your question, it's been completely scanned using the ford software and computer by my mechanic that did performance tests, ficm test, egr test and so on. No problems.
Reply With Quote Quick reply to this message
  #6  
Old 01-25-2011, 01:51 PM
Powerstroke.org Rookie
 

Join Date: Feb 2010
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
i ran into a problem with mine startng to run rough and take a long time to start. then it would miss slightly at idle and then too more at wot. then it started running worse. took it to jiffy lube and got the oil and fuel filters changed. im thinking they put in the wrong oil from before., has been running great since then. just a thought.
Reply With Quote Quick reply to this message
  #7  
Old 01-25-2011, 03:55 PM
Member
 

Join Date: Apr 2009
Posts: 78
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by one92rs View Post
i ran into a problem with mine startng to run rough and take a long time to start. then it would miss slightly at idle and then too more at wot. then it started running worse. took it to jiffy lube and got the oil and fuel filters changed. im thinking they put in the wrong oil from before., has been running great since then. just a thought.
Ok thanks. I think it is the oil. It ran great when it was warmer out. Ill try some 5-40 and rev-x next time its due for an oil change.
Reply With Quote Quick reply to this message
  #8  
Old 01-25-2011, 08:29 PM
Compression Ignition Addict
 

Join Date: Oct 2008
Location: Burley, ID
Posts: 491
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 2 reviews
Try some Rotella T5 10w-30 it has worked for alot of guys who have had stiction(sp?) problems. I was using Rotella T6 5x-40 Syn before the T5 and the truck seems to run better now.

Thanks Rick
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 -8. The time now is 11:52 PM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors