Reply
 
Thread Tools Display Modes
 
Old 06-29-2020, 10:01 AM   #1
Junior Member
 
Join Date: Sep 2015
Posts: 21
FICM Repair/Replace w/higher voltage FICM? 2005 6.0

Hi all,

Looks like it's time for a new FICM at least... and maybe not too long for new injectors. But I think I'll start with FICM. Rough cold starts, longer warm up times for any power... and I seem to be running slower and hotter on long steep grades.

Anyway... has anyone gone to a 53 or 58v FICM and noticed an improvement over stock 48v? Having trouble sorting through truth from fiction as to whether this is worth the extra spend?

Thanks!
__________________

Yovan is offline   Reply With Quote
Old 06-29-2020, 01:16 PM   #2
Site Team
 
BroncoHauler's Avatar
 
Join Date: May 2007
Location: Southern New Mexico
Posts: 9,226
Before dropping the money for a new FICM, what kind of voltage are you seeing out of you alternator? If you have voltage supply issues to your FICM, a new FICM won't help.




Herb
__________________

__________________
SMB-less as of 02/04/2012. Our savings account is richer, but our adventures are poorer.
BroncoHauler is offline   Reply With Quote
Old 06-29-2020, 06:19 PM   #3
Senior Member
 
Join Date: Jul 2011
Location: Flagstaff, AZ
Posts: 1,771
I did the Ultra service on my FICM with Ed at FICMrepair.com. I researched the 53 and 58v output options and performance gains mostly seemed to be hype. I do like the redundancy feature on the bulletproof power supply but it's ungodly expensive without much of a warranty. Not that you would need it as their units are highly regarded but Ed's work is warrantied for life.
__________________
2005 E350 RB 6.0 PSD for extended fun
1989 Landcruiser FJ62 for local fun
2011 VW TDI Golf for hwy fun
JoeH is online now   Reply With Quote
Old 06-29-2020, 08:50 PM   #4
Senior Member
 
ShuttlePilot's Avatar
 
Join Date: Aug 2012
Location: Colorado Springs, CO
Posts: 475
Greetings Yovan, I'll offer up my thoughts but understand I hold no credential in Ford 6.0's. Bear with me as you may have already done these steps. Before spending money I would confirm what your current injector electrical side status is.

1) I would obtain access to a diagnostic monitor like a Scanguage, Forscan, or AutoEnginuity.

2) Confirm both starting batteries are the same brand, age and 12.6-12.7 volts resting. Use multimeter.

3) With ignition on waiting for glow plugs observe voltage drop from glow plug demand. It is common to see voltage drop to 10-11 volts due to demand but if its 8 volts or less replace batteries. Indicated on scan tool.

4) Confirm alternator is supplying mid 14 volts at normal idle and is stable indicated on scan tool.

5) Confirm FICM voltage is 48 volts and rock stable at all rpm and driving conditions. Indicated on scan tool.

If all that checks out your performance issues are probably not your FICM or injectors. At that point I would upgrade the FICM as a reliability improvement for the future but not expect any performance cures. And, move on what the other issues are that are causing the issues your describing.

My only recommendations for FICM reliability improvements (only after confirming steps 1-4 from above are satisfied) are either Ed at FICMrepair.com who offers the lifetime warranty option OR the Bulletproof Diesel power supply with the 6 phase power supply for redundency.

Regarding the 53 or 58 volt options. It is my understanding that the higher voltage FICMs was from the high horsepower builds that were running higher and sustained HEUI oil pressures, think dyno rigs and sled pulling. Then it was believed by regular truck owners as a solution to prevent injector spool valves from sticking (sticktion). Sticking spool valves can not be prevented or cured by increased voltage in my opinion, that is an oil issue in the spool valve. I don't think it's just hype to run the higher voltage but 95% of all 6.0's aren't modified in a way that would need the higher voltage.

- Eric
__________________
2005 SMB RB 4x4 6.0 PSD
A rocket on the pad is safe,
but it's not what rockets are built for.
ShuttlePilot is offline   Reply With Quote
Old 06-30-2020, 09:12 AM   #5
Junior Member
 
Join Date: Sep 2015
Posts: 21
Thanks everyone,

Great call in checking alternator voltage first, it is relatively new--so I had bypassed that step in my brain but it is a good call.

My scan tool (a Bluetooth OBD2 reader) I don't believe can pull FICM voltage, but I will definitely be checking pre-crank and running voltage straight off of the FICM prior to ordering any replacements.

Appreciate the reminder about FICMrepair.com. That could be a could route and perhaps a mild tune out of it too.

I'll post back after I have chance to pull out the Multimeter and start pulling numbers.

Thanks!
Yovan is offline   Reply With Quote
Reply

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 Off
Pingbacks are Off
Refbacks are Off

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Sportsmobile SIP or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 10:20 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×