Notices
6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

FICM question

Thread Tools
 
Search this Thread
 
Old Oct 7, 2015 | 07:17 PM
  #1  
rogers017's Avatar
rogers017
Thread Starter
|
Trailering
10 Year Member
Joined: May 2015
Posts: 23
Likes: 0
FICM question

So today I was leaving a Dr appt and the cel came on. I had my OBD Link in so i scanned the codes and came up with injector circut low on all 8 cylinders. My FICM is running at 47.5-48 when cold then drops to 34 when the motor starts. Running down the road it fluctuates between 35-44 volts. From what I have read it sound like the FICM is starting to go. Can somebody confirm this for me? Any other possibilities I should look at? The truck is a 2003 F250 with 143k on it.
This is my first diesel so I'm not quite up with all the parts lingo but I am a former auto mechanic so i do know my whay around under the hood a little bit.
 
Reply
Old Oct 7, 2015 | 07:33 PM
  #2  
Per4mance's Avatar
Per4mance
Logistics Pro
10 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Mar 2013
Posts: 4,097
Likes: 23
From: Kissimmee,Fla
It's toast.Check your batteries individually and your alternator. Your contributing factor to the FICM going south was one of them. Call Ed @FICM repair .com and get her done
 
Reply
Old Oct 7, 2015 | 07:47 PM
  #3  
Forddiesel06's Avatar
Forddiesel06
Senior User
Joined: Oct 2013
Posts: 339
Likes: 1
From: Southern,Alabama
X2 give Ed a call......
 
Reply
Old Oct 7, 2015 | 07:54 PM
  #4  
WatsonR's Avatar
WatsonR
Lead Driver
Joined: May 2014
Posts: 6,545
Likes: 13
From: Virginia Beach VA
anything less than 45v at any time during cranking or while running is a bad FICM per Ford.
 
Reply
Old Oct 8, 2015 | 02:12 AM
  #5  
Yahiko's Avatar
Yahiko
Fleet Owner
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
Can I have some raspberry on his FICM toast.

But everyone is right the FICM is cooked. and needs service.
Ed at FICMRepair.com - FORD Powerstroke 6.0 FICM Repair, PHP Tuning and Truck Parts
They do more than toss parts at it. Also they use a good quality
part and replace more than just the one or two bad resistor.
Visit the site and you can read what they do.



Sean

6.0L Tech Folder
 
Reply
Old Oct 8, 2015 | 09:15 AM
  #6  
rogers017's Avatar
rogers017
Thread Starter
|
Trailering
10 Year Member
Joined: May 2015
Posts: 23
Likes: 0
Thanks for the responses guys....the only question now is to upgrade to the 58 volt or not...
Also the batteries were replaced by Ford when i bought the truck in February. I will test them but I'm guessing that the alternator is the culprit.
 
Reply
Old Oct 8, 2015 | 09:57 AM
  #7  
joe blow's Avatar
joe blow
Logistics Pro
20 Year Member
Liked
Loved
Community Favorite
Joined: May 2004
Posts: 3,607
Likes: 869
Ed is a great guy! He will take the time to make his customers happy which is why I will go back to him. Bullet proof also makes an FICM which seems .......well bulletproof, but it comes with a pretty steep price tag.
 
Reply
Old Oct 8, 2015 | 12:13 PM
  #8  
WatsonR's Avatar
WatsonR
Lead Driver
Joined: May 2014
Posts: 6,545
Likes: 13
From: Virginia Beach VA
I don't think a single company that makes FICMs or repairs them can garranty they will never break. They may go through every part, circuit board, resistor and, you get the idea... you loose an alternator or batteries and voltage supplying that FICM, its toast. The warranty may cover repair, like EDs but your going to pay for it.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-1

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
story-2

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-3

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-4

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-5

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-6

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-7

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-8

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-9

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
Old Oct 8, 2015 | 01:21 PM
  #9  
BryanStein's Avatar
BryanStein
Fleet Mechanic
10 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2013
Posts: 1,402
Likes: 114
From: Tuscaloosa, AL
I would not go with the 58 volt FICM. Who says the injectors will like 58 vs 48 volts? Just no need.
 
Reply
Old Oct 8, 2015 | 03:55 PM
  #10  
joe blow's Avatar
joe blow
Logistics Pro
20 Year Member
Liked
Loved
Community Favorite
Joined: May 2004
Posts: 3,607
Likes: 869
Good question. I have often wondered what the big deal is with going 58V but I do hear starts are a really nice and they "seem" to make the truck run better.








Originally Posted by BryanStein
I would not go with the 58 volt FICM. Who says the injectors will like 58 vs 48 volts? Just no need.
 
Reply
Old Oct 8, 2015 | 05:30 PM
  #11  
Rusty Axlerod's Avatar
Rusty Axlerod
Lead Driver
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
Club FTE Gold Member
If you or a friend are handy with a soldering iorn, there are instructions in the tech folder on how to repair a FICM. If you're familiar with that sort of work it isn't a hard job. Relatively inexpensive "power boards" are also available at many parts stores. Poor quality but maybe the right answer in an emergency. Ford gets a nice chunk of change for a new FICM assembly plus you'll need to get the trucks software updated for the FICM to work. Last time I heard, close to an $800 repair and the new one has the same issues as the one you're replacing. I've saw a couple posts saying the power board is available separately from Ford now, but I haven't researched that.

If you attempt to repair it yourself, be careful not to overheat the board, it heats up quickly with a standard soldering iorn and once it delaminates its trash.

Given all those possibilities, like the rest of the guys are thinking, I'd ship it off to Ed. There are a couple other good options for repair but Ed has been with us a long time, does a great job, and on the very few occasions there was an issue he's been super quick to make it right. Beside all that, he's a great guy and has nice legs. The affected components will be tested/replaced and unlike a simple re-solder it will be bench tested and warrantied. Another plus with a professional repair is the software options, economy, factory spec, and two levels of power upgrades are available.

I'd skip the 58v option. It plays on the the "more is better" mentality most of us have but it hasn't been demonstrated to provide any significant benefit. The wiring, circuit board and coils in the spool valves were all designed and sized to operate at 48v. The extra power makes more heat which is the origonal issue that causes failure. Many OBDII diagnostic devices report a 58v FICM as 48-50v, that makes it hard to keep track of its health later and there are no specs on exactly when it would need repaired if voltage begins dropping off in the future.
 
Reply
Old Oct 8, 2015 | 08:18 PM
  #12  
Yahiko's Avatar
Yahiko
Fleet Owner
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
One thought on the 58v idea. Anyone the breakdown voltage of the coils?
Sort of like running a 120V lamp at 130V. It will work but the life will be
shortened by a large amount.

I won't be around the rest of the night. Mom fell an is at the ER.

Let you all know more later.



Sean

6.0L Tech Folder
 
Reply
Old Oct 8, 2015 | 10:01 PM
  #13  
Rusty Axlerod's Avatar
Rusty Axlerod
Lead Driver
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
Club FTE Gold Member
I guess the thinking is more power makes a stronger field and moves the spool more forcefully. Maybe that would help if there was a stiction issue? I've got no idea about the how much voltage the coil can handle but a 20% increase seem like it would eat up a good chunk of any built in safety margin.

Hope your Mom is ok Sean.
 
Reply
Old Oct 8, 2015 | 11:02 PM
  #14  
rogers017's Avatar
rogers017
Thread Starter
|
Trailering
10 Year Member
Joined: May 2015
Posts: 23
Likes: 0
Originally Posted by Rusty Axlerod
If you or a friend are handy with a soldering iorn, there are instructions in the tech folder on how to repair a FICM. If you're familiar with that sort of work it isn't a hard job. Relatively inexpensive "power boards" are also available at many parts stores. Poor quality but maybe the right answer in an emergency. Ford gets a nice chunk of change for a new FICM assembly plus you'll need to get the trucks software updated for the FICM to work. Last time I heard, close to an $800 repair and the new one has the same issues as the one you're replacing. I've saw a couple posts saying the power board is available separately from Ford now, but I haven't researched that.

If you attempt to repair it yourself, be careful not to overheat the board, it heats up quickly with a standard soldering iorn and once it delaminates its trash.

Given all those possibilities, like the rest of the guys are thinking, I'd ship it off to Ed. There are a couple other good options for repair but Ed has been with us a long time, does a great job, and on the very few occasions there was an issue he's been super quick to make it right. Beside all that, he's a great guy and has nice legs. The affected components will be tested/replaced and unlike a simple re-solder it will be bench tested and warrantied. Another plus with a professional repair is the software options, economy, factory spec, and two levels of power upgrades are available.

I'd skip the 58v option. It plays on the the "more is better" mentality most of us have but it hasn't been demonstrated to provide any significant benefit. The wiring, circuit board and coils in the spool valves were all designed and sized to operate at 48v. The extra power makes more heat which is the origonal issue that causes failure. Many OBDII diagnostic devices report a 58v FICM as 48-50v, that makes it hard to keep track of its health later and there are no specs on exactly when it would need repaired if voltage begins dropping off in the future.
I learned how to weld in high school ( I USED to be able to TIG two soda cans together...) which included soldering. It's been a while but I did look at the PDF if the tech folder, and it doesn't look too bad to due on my own. If I go that route I might have to go out and get one of those digital soldering irons, it sure beats the hell out of using my old pencil soldering iron, which i would most likely due what you said and delam the PCB

As far as the 58v vs 48v it was something I had seen while looking up my problem. AS stated above it is supposed to help with staring and somehow acceleration but at this point after listen to you guys on the subject I will wait and do a lot more research on it.
 
Reply
Old Oct 9, 2015 | 03:43 AM
  #15  
Yahiko's Avatar
Yahiko
Fleet Owner
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
Originally Posted by Rusty Axlerod
I guess the thinking is more power makes a stronger field and moves the spool more forcefully. Maybe that would help if there was a stiction issue? I've got no idea about the how much voltage the coil can handle but a 20% increase seem like it would eat up a good chunk of any built in safety margin.

Hope your Mom is ok Sean.
You know with the close to max on the resisters you never know
what the coils can take.


She broke her hip in the fall. Surgery in the AM. I will update later.



Sean

6.0L Tech Folder
 
Reply



All times are GMT -5. The time now is 02:33 AM.

story-0
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-1
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-2
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-3
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-4
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-5
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-6
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-7
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-8
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-9
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE