355 F1 issue (?) - advice please!! | FerrariChat

355 F1 issue (?) - advice please!!

Discussion in '348/355' started by hallsdad, Aug 28, 2017.

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  1. hallsdad

    hallsdad Karting

    Mar 6, 2010
    88
    Cayce, SC
    Full Name:
    Steve
    #1 hallsdad, Aug 28, 2017
    Last edited: Aug 28, 2017
    After 3 years of happy and issue free ownership I have encountered my first problem. A couple weeks ago I was driving around in 5th gear with no problems and the car instantly dropped to 2nd gear and the F1 light started going nuts...talk about ruining a good day. Luckily I was close to home and got home with no problem without going past 2nd.

    The car will only go into neutral, 1st, and 2nd. Once this happened the speedometer started bobbing up and down like a fish had been caught on a bobber. This all seemed to happen within a mile of bottoming out where road construction was being done...but perhaps that is just a coincidence.

    I have searched and found one thread (see below) that sounded very similar and want to know if this is the preliminary diagnostics I should start with, or any other thoughts you might have to help me get her back on the road.

    http://www.ferrarichat.com/forum/348-355-sponsored-bradan/550198-355-f1-gearbox-failure-warning-light.html?highlight=gearbox+failure

    Thanks in advance,
    Steve
     
  2. Dave rocks

    Dave rocks F1 World Champ
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    #2 Dave rocks, Aug 28, 2017
    The speed sensor is done - need to replace

    P/n: 149095
     
  3. hallsdad

    hallsdad Karting

    Mar 6, 2010
    88
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    Steve
    #3 hallsdad, Aug 28, 2017
    That's what I was thinking, but like the confirmation. Any idea of the best place to purchase? Thanks again!!
     
  4. Dave rocks

    Dave rocks F1 World Champ
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    #4 Dave rocks, Aug 28, 2017
    Last edited by a moderator: Sep 7, 2017
    Your favorite parts supplier. Everyone has different vendors they like.
    Image Unavailable, Please Login
     
  5. taz355

    taz355 F1 Veteran
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    Feb 18, 2008
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    #5 taz355, Aug 28, 2017
    You also might want to check engine mounts and the actuator to frame clearance.
     
  6. phrogs

    phrogs F1 Veteran
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    Apr 13, 2004
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    #6 phrogs, Aug 28, 2017
    When this happens hit both paddles back to select neutral, then hit the up shift paddle it will select the appropriate gear and you can limp home. It will let you downshift but not upshift.

    These speed sensors are dying now that they are pushing 20 years old.
     
  7. hallsdad

    hallsdad Karting

    Mar 6, 2010
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    Cayce, SC
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    Steve
    #7 hallsdad, Aug 29, 2017
    I wish I had know that when it happened, good info to have at hand.
     
  8. WATSON

    WATSON Two Time F1 World Champ
    Owner Rossa Subscribed

    Sep 9, 2010
    21,726
    WI
    #8 WATSON, Aug 29, 2017
    A good suggestion. But a bouncy / dead speedo is pretty much the give away. Dave is spot on, replace the sensor.
     
  9. Dave rocks

    Dave rocks F1 World Champ
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    #9 Dave rocks, Aug 29, 2017
    Well, thanks. But, I learned it here and likely from you :)
     
  10. taz355

    taz355 F1 Veteran
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    #10 taz355, Aug 29, 2017
    Replaced mine 2 years ago and its a 99
     
  11. sevminasyan

    sevminasyan Formula 3

    Jun 24, 2008
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    #11 sevminasyan, Sep 1, 2017
    Everyone with the sensor issue, when it went bad, do you remember if you could go through the gears with the key on position? Or would/should it still give issues since it's not reading the speed correctly?
     
  12. taz355

    taz355 F1 Veteran
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    #12 taz355, Sep 1, 2017
    If you mean when not moving absolutely.

    When moving no.
     
  13. taz355

    taz355 F1 Veteran
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    #13 taz355, Sep 15, 2017
    Its likely out of calibration. Without an sd or galileo this is a educated guess.

    Have you tried in auto mode?
     

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