Failing FICM ? - Diesel Forum - TheDieselStop.com
6.0L Power Stroke Engine and Drivetrain Discussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

 
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post #1 of 12 (permalink) Old 03-16-2019, 09:23 PM Thread Starter
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Failing FICM ?

2005 F250SD with 6.0L powerstroke. This is a Ford complete remanufactured engine with out 30,000 miles.
Engine runs fine except that sometimes it is a hard start.


Recently installed some new Edge guages and started getting FICM warnings from the guages showing FICM voltage dropping below 45v. Shows 48 at before and after startup but will often drop down to the low 30's, even at idle. The truck runs fine, no misfires, nothing. Even a idle when the voltage drops, the engine does not skip a beat. There are no codes.


My inclinication is a bad or failing FICM but would think it would throw some codes or at least sputter a bit.


According to Ford Service manuals, it it starts and doesn't misfire or throw codes then it probably isnt a faulty FICM. Others say a drop in voltage at anytime below 45 is a faulty FICM.


What are your thoughts?


Also heard about an upgrade to 58 volts? Any thoughts on this?

2005 F250 Super Duty 6.0 PSD
Blown engine due to dealership repair (lawsuit)
New Complete Ford Remanufactured engine in 10/2013

Last edited by WeBBy; 03-16-2019 at 09:29 PM.
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post #2 of 12 (permalink) Old 03-17-2019, 04:15 AM
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IMO it is either the FICM relay or the FICM. Just because you don;t feel any problems w/ how the truck runs doesn't mean everything is fine.

The 58V FICM does nothing for you. It isn't an upgrade.

What scan tool are you using to read codes. You could easily have codes and not be able to pull/read them. Many scan tools (and most programmers) are poor code readers.

Mark
06 F250 CC SB FX4 Lariat;ARP studs;OEM gaskets;Banks exhaust;DynaTrac Ball joints;Coolant filter;High-Idle mod;RACCCV6000;JimmiJammers;Ravelco;SynchroMax xfer case;Fumoto valve;Harpooned;CPOhighwayProducts toolbox;tracrac;Fox Weatherboots;Wet Okole Seat Covers;BriteBox;Re-flashed;Quadzilla Recon XZT Fuel Press;Blue FPR spring;DashDAQ;PHP FICM;RiffRaff boots;DCPower270A XP;PowerInverter;Rancho7000's;BPD EGR cooler;One-piece HPOP fitting;D-plugs&standpipes;BPD Billet WaterPump;SCT w/ Matts SRL+;ELC Ultra;DuraTracs
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post #3 of 12 (permalink) Old 03-17-2019, 09:16 AM Thread Starter
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No codes (other than an air intake sensor) according to the Edge CTS2 and ScanGuageII. I agree that just because the truck runs fine doesnt mean that there is nothing wrong - I do have hard start issues on occcasion, more often than I would like.


Am just left with the decision whether to pull the FICM and have it rebuilt or not. Hate to spend the money if there is nothing wrong with it and the voltage drops are caused by something else.


I do have a unrelated short issue that I cannot seem to resolve, but the hard starts are more often when the engine is warm rather than cold.

2005 F250 Super Duty 6.0 PSD
Blown engine due to dealership repair (lawsuit)
New Complete Ford Remanufactured engine in 10/2013
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post #4 of 12 (permalink) Old 03-17-2019, 10:52 AM
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I would agree to no use a 58v ficm. The components they are built from don't do well with that kind of voltage. What is the main voltage when the ficm is reading low?
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post #5 of 12 (permalink) Old 03-17-2019, 09:10 PM Thread Starter
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Not sure what you mean by "main voltage". Generally at startup I have 12.5 volts and 48 volts.Since my guages are not usually active on a hard start, I do not know what they are then. When I have a hard start (first crank will not start) , I usually have to turn key off, wait a minute or so, and try again. Will usually start second time assuming I have not run my batteries down too much. This hard start happens more often when engine is warn rather than cold.

Shortly after start, the FICM voltage will sporaticallty drop down below 45, sometimes down into the low 30's. No rhime or reason as to why the voltage drops, completely random.

2005 F250 Super Duty 6.0 PSD
Blown engine due to dealership repair (lawsuit)
New Complete Ford Remanufactured engine in 10/2013
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post #6 of 12 (permalink) Old 03-17-2019, 09:23 PM
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Originally Posted by WeBBy View Post
No codes (other than an air intake sensor) according to the Edge CTS2 and ScanGuageII. I agree that just because the truck runs fine doesnt mean that there is nothing wrong - I do have hard start issues on occcasion, more often than I would like.


Am just left with the decision whether to pull the FICM and have it rebuilt or not. Hate to spend the money if there is nothing wrong with it and the voltage drops are caused by something else.


I do have a unrelated short issue that I cannot seem to resolve, but the hard starts are more often when the engine is warm rather than cold.
Well, good luck with it then.

As an fyi, the Edge CTS and the scangaugeII are rather poor code readers.

Mark
06 F250 CC SB FX4 Lariat;ARP studs;OEM gaskets;Banks exhaust;DynaTrac Ball joints;Coolant filter;High-Idle mod;RACCCV6000;JimmiJammers;Ravelco;SynchroMax xfer case;Fumoto valve;Harpooned;CPOhighwayProducts toolbox;tracrac;Fox Weatherboots;Wet Okole Seat Covers;BriteBox;Re-flashed;Quadzilla Recon XZT Fuel Press;Blue FPR spring;DashDAQ;PHP FICM;RiffRaff boots;DCPower270A XP;PowerInverter;Rancho7000's;BPD EGR cooler;One-piece HPOP fitting;D-plugs&standpipes;BPD Billet WaterPump;SCT w/ Matts SRL+;ELC Ultra;DuraTracs
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post #7 of 12 (permalink) Old 03-17-2019, 09:33 PM Thread Starter
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Well, good luck with it then.

Thanks much - great help

2005 F250 Super Duty 6.0 PSD
Blown engine due to dealership repair (lawsuit)
New Complete Ford Remanufactured engine in 10/2013
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post #8 of 12 (permalink) Old 03-17-2019, 09:37 PM
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Thanks much - great help
........ I already told you it was probably the relay or the FICM. What else do you want? If something else is going on also, the CTS2 and the scangaugeII may not pick it up (also posted earlier). You have the vehicle. The legwork is up to you.

http://www.ficmrepair.com/index.cfm/...rod/prd105.htm

Read the bottom two paragraphs:
"Again, if the voltage drops below 45, even for a second, during any of these tests, the FICM needs repair."

Mark
06 F250 CC SB FX4 Lariat;ARP studs;OEM gaskets;Banks exhaust;DynaTrac Ball joints;Coolant filter;High-Idle mod;RACCCV6000;JimmiJammers;Ravelco;SynchroMax xfer case;Fumoto valve;Harpooned;CPOhighwayProducts toolbox;tracrac;Fox Weatherboots;Wet Okole Seat Covers;BriteBox;Re-flashed;Quadzilla Recon XZT Fuel Press;Blue FPR spring;DashDAQ;PHP FICM;RiffRaff boots;DCPower270A XP;PowerInverter;Rancho7000's;BPD EGR cooler;One-piece HPOP fitting;D-plugs&standpipes;BPD Billet WaterPump;SCT w/ Matts SRL+;ELC Ultra;DuraTracs

Last edited by bismic; 03-18-2019 at 06:57 AM.
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post #9 of 12 (permalink) Old 03-18-2019, 04:03 PM Thread Starter
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Originally Posted by bismic View Post
Well, good luck with it then.

As an fyi, the Edge CTS and the scangaugeII are rather poor code readers.
And you then refer me to a page that recommends the Edge CTS or ScanGuage II.

2005 F250 Super Duty 6.0 PSD
Blown engine due to dealership repair (lawsuit)
New Complete Ford Remanufactured engine in 10/2013
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post #10 of 12 (permalink) Old 03-18-2019, 05:05 PM
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The Edge CTS and the scangauge are great for reading engine parameters, just not good code readers. Again - best of luck with it .......

Mark
06 F250 CC SB FX4 Lariat;ARP studs;OEM gaskets;Banks exhaust;DynaTrac Ball joints;Coolant filter;High-Idle mod;RACCCV6000;JimmiJammers;Ravelco;SynchroMax xfer case;Fumoto valve;Harpooned;CPOhighwayProducts toolbox;tracrac;Fox Weatherboots;Wet Okole Seat Covers;BriteBox;Re-flashed;Quadzilla Recon XZT Fuel Press;Blue FPR spring;DashDAQ;PHP FICM;RiffRaff boots;DCPower270A XP;PowerInverter;Rancho7000's;BPD EGR cooler;One-piece HPOP fitting;D-plugs&standpipes;BPD Billet WaterPump;SCT w/ Matts SRL+;ELC Ultra;DuraTracs

Last edited by bismic; 03-18-2019 at 05:17 PM.
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post #11 of 12 (permalink) Old 03-18-2019, 05:24 PM Thread Starter
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The Edge CTS and the scangauge are great for reading engine parameters, just not good code readers. Again - best of luck with it .......
FYI editing your "funny" comments after you submit it doesnt prevent them from being sent by email on instant notification.

2005 F250 Super Duty 6.0 PSD
Blown engine due to dealership repair (lawsuit)
New Complete Ford Remanufactured engine in 10/2013
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post #12 of 12 (permalink) Old 03-20-2019, 03:11 PM
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What he is saying is go the the ficmrepair website and read it! Lots of good info there on the problem. it will give you a basic understanding of what you are dealing with. Ed on that site is the FICM guru. They an also test the FICM is you send it in. If it isn't broken, they won't work on it if you ask them not to.

2006 F250 Lariat Supercrew, ESOF 4x4, 18" tires, FX 4, HD Alt., block heater, Integrated Trailer Brake Controller, Upfitters, power rear window, cab lights - delivered 10/25/05

Ford Remote Start; High idle mod; Timbren load levelers, Scangauge II, Blue Spring upgrade, Quick Start 200 amp large frame alternator, 2 batteries January 2010; GPCM replace October 2011; 2 EGR valves; EGR Cooler replaced 12/30/11; Performance Machine & Mfg. coolant filter added 1/2/12; Rotella T6 5W40 oil; turned rotors, replaced brake pads for 1st time 1/7/12 101K miles; GPCM, both subharnesses and all 8 glowplugs replaced 1/5/13 at 118,000 miles; 2 Ford batteries replaced under battery warranty twice, the latest 9/18/2015; FICM power supply board replaced with Dorman board 11/20/13. Coolant flushed and replaced with Prestone ELC 9/27/14. STC fitting 10/19/14; Dummy Plugs 11/8/14; Turbo rebuilt 11/29/14; cold side CAC tube and boots replaced with metal tube 1/24/15; replaced hot side boots 1/30/16.
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