360 - F1 360 sporadically grinding while shifting gears. Please help! | FerrariChat
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360 F1 360 sporadically grinding while shifting gears. Please help!

Discussion in '360/430' started by eees, Jul 21, 2024.

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  1. eees

    eees Rookie

    Sep 16, 2023
    32
    Clearwater, Florida
    Full Name:
    Ian Rainey
    #1 eees, Jul 21, 2024
    I have a 2002 F1 360 spider with 85%-90% clutch life. 36,000 miles. I’ve owned it 1 year and put on 1500 miles.

    Sporadically when shifting, I hear something like what you would hear when shifting an manual transmission from 1st to 2nd…similar to a bad syncro. But it’s happening in all gears, and it is random, and it occurs at all RPM’s. It seems less prevalent under hard acceleration, but maybe it’s just because I can’t hear the grind over the sound of the roaring engine.

    Replaced the battery. No change. Whole car serviced 1500 miles ago when purchased used.

    I don’t see any fluid leaks. Everything else appears and drives normal.

    Any ideas? I hope nobody thinks im going to need a new tranny.

    Thanks in advance!!!


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  2. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,067
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #2 tazandjan, Jul 21, 2024
    Check the fluid and make sure it does not have antifreeze in it. If your transaxle cooler goes, the two fluids mix to the detriment of the transaxle.
     
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  3. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,705
    Central NJ
    Full Name:
    Dominick
    #3 flash32, Jul 21, 2024
    +100 terry

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  4. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,705
    Central NJ
    Full Name:
    Dominick
    #4 flash32, Jul 21, 2024
    Last edited: Jul 21, 2024
    Also check the trans fluid to see if it is s contaminated and the level.. maybe they didn't fill it properly

    After that ..does it happen more when hot vs cold ..cold vs hot ?
     
  5. andrejwolk1975

    andrejwolk1975 Karting

    Feb 28, 2020
    107
    Italy
    Full Name:
    Andrea M
    #5 andrejwolk1975, Jul 21, 2024
    Transmission oil mixed with coolant. Don't drive the car and repair it asap. Engine, gearbox and differential are at risk. Oil transmission cooler 100% failed. Check for oil contamination in coolant reservoir
     
  6. priericky128

    priericky128 Formula Junior
    Silver Subscribed

    Feb 11, 2021
    626
    St. Louis MO
    Full Name:
    Rick
    #6 priericky128, Jul 21, 2024
    Yeah plus one on checking the fluid and replacing if you don’t find a heat exchanger failure.

    When I got my car a few years ago it would periodically grind in various gears at all different random times. Turns out the transmission hadn’t been flushed in at least 10 years. Two flushes later and the grinding was totally gone, never had it happen since.


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  7. eees

    eees Rookie

    Sep 16, 2023
    32
    Clearwater, Florida
    Full Name:
    Ian Rainey
    #7 eees, Jul 22, 2024
    Thanks guys! I’ll check and replace the fluid right away.
     
  8. eees

    eees Rookie

    Sep 16, 2023
    32
    Clearwater, Florida
    Full Name:
    Ian Rainey
    #8 eees, Jul 22, 2024
    It happens randomly when hot and cold. All fluids were replaced about 1500 miles ago. I will check the level myself and inspect/replace if Insee anything unusual. Let me know if that triggers any other questions. Thank you!
     
  9. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,705
    Central NJ
    Full Name:
    Dominick
    #9 flash32, Jul 22, 2024
    After checking that we çan doing a little diag /checking the F1 system as well

    Do you have any diagnostic tools ..if not we can do some timings to see if things are working properly

    After that ..I would consider a F1 flush and a relearn ..that being said hear grinding is not usually a symptom of a poorly operating F1 system

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  10. Extreme1

    Extreme1 Formula 3

    Jun 27, 2017
    1,387
    Santa Clarita, CA
    #10 Extreme1, Jul 22, 2024
    Are you sure the gearbox fluid was changed and the filter screen was checked?
    When I got my 430 three years ago I double checked all the fluids and filters. The gearbox filter screen had a lot of white silicone on it, indicating that it had never been removed and cleaned.


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    flash32 likes this.
  11. imahorse

    imahorse F1 Rookie
    Silver Subscribed

    Nov 25, 2017
    4,278
    WI
    Full Name:
    Dustin
    #11 imahorse, Jul 26, 2024
    Definitely verify that there is no coolant mixed in the gearbox. I had a similar problem. The challenge stradale tcu seemed to make it worse. I tried multiple fluids, multiple relearns, a new clutch solenoid after determining it was leaking and even tracked down an SDX to work on it with. I wish I could say I figured it out, but it still has me puzzled. I ended up getting fed up, did a manual swap, and 4,000 not so gentle miles later I still have no transmission noises.

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