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F1 gearbox stuck in neutral

Discussion in '360/430' started by angelis, Aug 19, 2017.

  1. angelis

    angelis F1 Veteran
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    Jun 18, 2004
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    #1 angelis, Aug 19, 2017
    Last edited by a moderator: Sep 7, 2017
    Whilst stopped at a traffic light, the 360 refused to change gear and remained in neutral. Ended up being transported home on the back of a truck.

    No warning lights.
    F1 pump is working when door is opened.
    No initial indication of what was going to happen.

    Did the electrical reset twice.
    Swapped fuses over.

    Car starts up fine and runs ok, just not changing gears.

    It has a CS TCU installed about 6 months ago. Clutch wear was around 29%

    Any other ideas on what the fault could be?

    Thanks
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  3. LorenzoR

    LorenzoR Formula 3
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    Since your saying your clutch wear is only 29% Ill throwout 2 possibilities..Clutch position sensor or Actuator.
     
  4. mwstewart

    mwstewart Formula 3

    Feb 5, 2014
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    Did you try auto or reverse?

    Neutral is one of the safety strategies to protect the box, but that is generally accompanied by a code that will trigger a warning light.

    Trying auto or reverse would quickly rule out something daft like the paddle assembly.

    To go any further really needs diagnosis.
     
  5. billy.gif

    billy.gif Karting

    Mar 9, 2017
    245
    Finland
    Will it engage gears when the engine is shut OFF but the ignition is on? IF so then its the clutch throw out bearing. Your symptoms are 100% like mine when the said throw out bearing went kaput earlier this year:

    IF engine was running, it wouldn't select any gear. If engine was shut OFF but ignition was ON, it selected any gear I wanted.
     
  6. angelis

    angelis F1 Veteran
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    Thanks.

    Tried reverse but didn't work.

    Didn't try Auto setting though.


    Thanks. Will give it a go.
     
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  8. Skidkid

    Skidkid F1 Veteran
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    Another possibility is PIS is set too tight. There are so many possible causes. You need to get to an SD and someone who really knows these systems.
     
  9. angelis

    angelis F1 Veteran
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    Will hopefully have it picked up in a few days.

    Just wondering if there was an easy fix like a hidden fuse etc
     
  10. billy.gif

    billy.gif Karting

    Mar 9, 2017
    245
    Finland
    And mine broke just like your "episode":

    I stopped at traffic lights, I always put it "N" when doing so. When lights changed I tried to select 1st gear but nothing was happening. When I shut the car OFF (but ignition ON) it would select any gear I requested, 1-2-3-4-5-6-N-R etc.

    IF its the throw out bearing then prepare for somewhat high bill as the gearbox needs to be removed in order to access it. Lets hope its something else!
     
  11. up4speed

    up4speed F1 Rookie
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    Maybe the brake light switch?
    If the computer doesn't realize that your foot is on the brake, it won't go into gear.
    I had some issues with the gearbox error light randomly lighting up when switching gears (no gear changing issues though) when I first bought the car. I changed the brake switch (~$45) and I never had an issue since.
     
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  13. CarbonDan

    CarbonDan Karting

    Aug 19, 2017
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    PNW
    If you shut it off, put it in say 2nd and started the car up, would it stay in gear and allow you to drive or kick it straight back to neutral as soon as the car started?
     
  14. nchhotu

    nchhotu Karting
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    PIS settings incorrect. I had that issue intermittently with a CS TCU got clutch settings adjusted no problems.
     
  15. Stout

    Stout Formula Junior

    May 9, 2013
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    Brake light switch is not working properly.
     
  16. Stammler

    Stammler Rookie

    Aug 6, 2017
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    Sweden
    Same on friends 430.
    Cured after topping up hydraulic oil. Was lo level.
     
  17. 355fiorano

    355fiorano Formula Junior

    Oct 21, 2003
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    I had the same happen twice shortly after I bought it. It eventually got into first both times after some faffing about with the paddles, accelerator, ignition on/off. At about the same time the check engine light went on and as it was only a month since I bought it from the main dealer, they took it back and sent the ECU to be re-flashed at the factory. I haven't had this issue since but I now never switch into neutral when waiting or at traffic lights just in case ...
     
  18. Skidkid

    Skidkid F1 Veteran
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    So how do you think you would do that since the system automatically shift to N to start?
     
  19. angelis

    angelis F1 Veteran
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    360 all fixed. Turned out to be a very minor issue in the end.

    Picking it up tomorrow from Bell Classics and will post full details later.

    Thanks for all your help.
     
  20. up4speed

    up4speed F1 Rookie
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    Glad it was minor! Can't wait to hear the final outcome
     
  21. angelis

    angelis F1 Veteran
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    Just picked up the car from Bell Classics.

    The gearbox fault was due to a loose heatshield that shorted out the rear brake lights.

    If brake lights are blown, the F1 gearbox won't work!!
     
  22. Skidkid

    Skidkid F1 Veteran
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    That's correct.
     
  23. Gcolella

    Gcolella Rookie

    Jul 30, 2017
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    Good to know ! Sounds kinda strange though !
    So if one of my brake lights burn out the f1 trans won't work?
     
  24. Ron328

    Ron328 F1 Rookie
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    Great to hear! That's a weird kind of connection (but what the hell do I know...).
     
  25. mello

    mello F1 Rookie
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    Yup. That's why I converted to LEDs and carry spare LED bulbs and a new brake switch in the frunk. I don't want to get stranded somewhere out on a rural road without cell signal. I also practice how to change out the bulb by feel in case it happens at night time. :)
     

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