A new question is answered every 9 seconds

Just replaced my 2004 FORD F250 Diesel 6.0 FICM and had the

Customer Question

Just replaced my 2004 FORD F250 Diesel 6.0 FICM and had the CPM software updated by Auto Exchange Computers out of Florida. The reason for replacement was my FICM had low voltage of 36 when it was cold out. Then it would go up to 47.5 when the motor was warmed up and run great. As known, the FICM was basically going bad like everything with this Ford model & motor, 6.0.

I put in the refurbished FICM and the updated CPM unit, basically straight forward. When the ignition key is turned for glow-plug I get a FICM reading of 47.9. When we try and turn the motor over, the FICM reading goes down to 18.6, without the motor starting.

Also, I checked all plugs in both units to confirm they are connected and checked teh volt of both new batteries, both at 12.7+.

Unfortunately the Auto Exchange Computer is does not have techs today and I really do not want to send it back without professional input.

Please advise as soon as you can. Thank you, XXXXX XXXXX

Confused why no one has answered the second inquiry, so I have gone back to this first question. Hope to hear from someone.
Submitted: 6 years ago.
Category: Ford
Expert:  Ray M. replied 6 years ago.
You should have the batteries load tested.I suspect they are bad,they will still show good voltage but the cranking amperage of the batteries is low and cause the voltage to drop when a load is put on them.
Customer: replied 6 years ago.
Diesel Doc,

Just got back from checking the load on both batteries. They both were ok at 12.5, but still bought new ones which both were 12.8+ cranking load tested and the same result, a strong cranking from the engine, just no start. Please advise.
Expert:  Ray M. replied 6 years ago.
With the new batteries dies the FICM voltage still drop to 18volts?
Customer: replied 6 years ago.
Yes, "all" symptoms are the same. If you have any further questions, it would be great if you asked and assumed one way or the other. I have had to wait all day for you to ask that question regarding the new batteries.

Is there anything that would cause a good FICM reading while turning the key so the glow plug turns off to change to a lower reading when turning over the motor? As well does not have the truck start.

A key side note, the truck originally started but just ran rough when cold. After testing and seeing the old FICM had a low number (running or with key turned on for the glow plug), I sent it out to Auto Exchange Computers with PCM. In turn they returned a refurbished FICM and my PCM with newest software.

I have not changed one thing since taking out the old FICM and replacing with the refurbished.

Could they have messed up the communications between each other?
Expert:  Ray M. replied 6 years ago.

Sorry for the delay in my reply,had to move furniture today so was away for a while.

As for the replacement of the FICM,I am pretty sure that this can only be done with the Ford IDS scan tool,we have had all the private shops in town try to reprogram the PCM and FICM but never with any success,It most definitely sounds like the FICM and PCM are not at the same calibration level,I would suggest you get it to your nearest Ford dealer and have them perform a PMI on the truck.PMI is short for programmable module installation

Customer: replied 6 years ago.
I have been told by a variety of local shops and out of state shops that outside of Ford they can update.
Customer: replied 6 years ago.
Diesel Doc, I must have not click properly the reply. I received an email last night from you.

I did send it back to the Auto Computer Exchange and will have feedback regarding if it was the Units or not. Hopefully I can provide one final email to you in response to share it was the units. If it was not, I will be inquiring the next step from you. Thank you.
Ask Ray M. Your Own Question
Ray M.
Ray M., Ford Master Tech
Category: Ford
Satisfied Customers: 2997
Experience:  30+ years in trade, Ford Master Tech, Journeyman Automotive Tech
Type Your Ford Question Here...
Ray M. is online now
How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

What Customers are Saying:

  • AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on. Rich D USA
< Previous | Next >
  • AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on. Rich D USA
  • Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me. Molly USA
  • I needed help with my car on Saturday morning....got a response in 5 minutes, and it was the perfect solution. Thanks again to your service. Jason V. Kirkland, WA
  • I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there. BR New Jersey
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

Meet The Experts:

  • Ron


    ASE Certified Technician

    Satisfied Customers:

    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
< Last | Next >
  • http://ww2.justanswer.com/uploads/FO/fordguyu/2015-7-7_172556_onnieew.64x64.jpg Ron's Avatar


    ASE Certified Technician

    Satisfied Customers:

    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka- Moose)'s Avatar

    Chris (aka- Moose)


    Satisfied Customers:

    16 years experience
  • http://ww2.justanswer.com/uploads/JM/jmcdo28/2012-2-23_01655_resized.64x64.jpg John Mc's Avatar

    John Mc

    Ford Technician

    Satisfied Customers:

    19 years Ford Lincoln Mercury experience
  • http://ww2.justanswer.com/uploads/wmarti7/2009-4-18_04332_Avatar.jpg Chuck's Avatar


    ASE Certified Technician

    Satisfied Customers:

    33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance
  • http://ww2.justanswer.com/uploads/BL/Bluegorilla/2012-6-21_16298_cam.64x64.JPG Cam's Avatar


    Journeyman Automotive Technician

    Satisfied Customers:

    GM Grand Master Technician 2007. 14 years Automotive experience.
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar


    ASE Certified Technician

    Satisfied Customers:

    12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.
  • http://ww2.justanswer.com/uploads/BA/baddad1/2014-4-1_23659_avatar.64x64.jpg Mike V.'s Avatar

    Mike V.

    Auto Service Technician

    Satisfied Customers:

    25 years experience on all makes and models, Licensed NYS Inspector.