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Looking for F355 F1 TCU!

Discussion in '348/355' started by bders001, Mar 10, 2018.

  1. Rossocorsa1

    Rossocorsa1 F1 Rookie

    May 14, 2017
    3,550

    This is funny. I totally agree. I hate when people tell to just look in the forum for the answer to your question.
     
  2. jimmym

    jimmym Formula 3

    Sep 30, 2008
    1,725
    Northeast U.S.
    Full Name:
    Jim
    The op did not follow up. So no conclusion to this thread. His last post was in July.
     
  3. WATSON

    WATSON F1 World Champ
    Rossa Subscribed Owner

    Sep 9, 2010
    10,344
    WI
    ????

    I don't need the OP to finish it up...just a carrying on result.

    This was nice to see.

    Is there a concern you have that I do not understand?
     
  4. jimmym

    jimmym Formula 3

    Sep 30, 2008
    1,725
    Northeast U.S.
    Full Name:
    Jim
    after all the info you and a few other owners had given to the op, it would have been nice to see how and if the problem was resolved. I read the thread and was curious to see what the op ended up doing, did he figure it out or did he convert the system to a manual. If pelagicplague had the same symptoms as the op then i could see an end result to the thread. I was curious to see an end this thread, one way or another, that’s all.
     
    ernie likes this.
  5. taz355

    taz355 F1 Veteran
    Silver Subscribed Owner

    Feb 18, 2008
    5,056
    Indio Ca/ Alberta
    Full Name:
    Grant
    Your doesn't blip on downshifts???
     
  6. WATSON

    WATSON F1 World Champ
    Rossa Subscribed Owner

    Sep 9, 2010
    10,344
    WI
    Actually, now that you mention it....I think it does.

    :)
     
  7. taz355

    taz355 F1 Veteran
    Silver Subscribed Owner

    Feb 18, 2008
    5,056
    Indio Ca/ Alberta
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    Grant
    I figgured it had just been a while since you drove.
     
    WATSON likes this.
  8. pelagicplague

    pelagicplague Rookie

    Aug 24, 2014
    6
    Denham Springs, LA
    Full Name:
    Alan Hale
    While my symptoms were similar, it was more like being buried up to the neck in an ant pile. A slow and painful death. Started out with the annoying audible alarm every once in a while. No rhyme or reason and no physical differences in the shifting, that I could sense anyway. Then came some intermittent temperamental shifting. It slowly worked itself up to a big fat zero over the course of about a year. Normally I like fixing things myself, but was beginning to realize this was perhaps above my pay grade. Took it to my somewhat local mechanic with an SD2 to get some insight. Root cause ended up being a slightly insufficient voltage being supplied from the TCU to the solenoids in the valve body. Our first fear was that the solenoids might have been causing the issue since, as I'm sure you gentlemen know by now, are not a part you want to locate and/or pay for. Now that the TCU was deemed the LRU, enter Rod and his new board. My first question to my mechanic once he had installed it was about the solenoid consumption. He said all values tested normal, so that was no longer a concern. Music to my wallet. Thanks to all you guys that post your insights here. If I was stuck using the technical manuals, I'm pretty sure I would be the proud owner of a prancing horse garden gnome.
     
    Qavion likes this.
  9. Dave rocks

    Dave rocks F1 World Champ
    BANNED

    Nov 23, 2012
    15,969
    Orchard Park, NY
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    Dave Lelonek
    It's my understanding that Rod has now at least 3 of his new TCU's installed successfully in cars.
     
    WATSON likes this.
  10. pelagicplague

    pelagicplague Rookie

    Aug 24, 2014
    6
    Denham Springs, LA
    Full Name:
    Alan Hale
    I remember hearing that he had another F1 that came to his shop shortly after we sent my TCU there. He said it had the same symptoms. Any way you slice it, I'm just glad he made it happen. One less thing we have to worry about in the future.
     
    taz355 and SoCal1 like this.
  11. bders001

    bders001 Rookie

    Jan 4, 2015
    8
    Burbank, Ca
    Sorry everyone, its been a while since i've gotten back. I took it to a few shops and all had the same diagnosis, "Replace the whole F1 system." The car has been functioning worse ever since I took it to these shops that claimed they could fix the problem. Have not figured out the problem yet but I am slowly getting to a solution as I test each component according to the diagnosis aids in the manual. I opened up the TCU and found a power unit component not working. I replaced that. The check engine light was on after taking it to these shops. The replacement of the power unit fixed that problem. The car still is not shifting properly however. Have not had time to sit down and work on it. I have not worked on a 355 but I am sure some more patience can lead to a solution. (Additionally, I changed the engine mounts, the pump primes but not shift properly.) I will keep everyone informed when I come to a solution.
     
    jimmym and Qavion like this.

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