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Bad TOB

Posted by BLACK'98DSM, Nov 14, 2019

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  1. BLACK'98DSM

    BLACK'98DSM Proven Member

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    Hoover, Alabama
    At idle there is a decently loud growling/rubbing/rattling sound coming from the transmission. But when I push the clutch in it pretty much goes away, and my idle feels a little less rough. My only thought is the throw out bearing, but could it be something else?
     

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    fwd · manual · 2G DSM

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  2. motomattx

    motomattx Proven Member

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    Sure, it could be an input shaft bearing or even a gear cluster in the transmission thats got damage, when you push the clutch in you remove the power transmission through these parts.
     

    Drag Race Build 3K  24

    1995 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
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  3. tk106

    tk106 Supporting Member

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    Cincinnati, Ohio
    I’d pray it’s the tob. Good news is I save a lot on my car insurance and it’s a cheap part
     

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  4. BLACK'98DSM

    BLACK'98DSM Proven Member

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    I forgot to mention that this happens in neutral, so the transmission is not in gear. TOB or input shaft bearing it is!
     

    Road Race Build 2K  25

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    385  3

    2012 Murray Explorer Dune
    rwd · automatic · Misc Vehicles

    296  6

    2009 Troy Bilt Bronco
    rwd · automatic · Misc Vehicles
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    609DSM likes this.
  5. 609DSM

    609DSM Proven Member

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    Princeton, New Jersey
    I have the same issue with mine on a cold start I hear grinding, when clutch is depressed it goes away. But after its warmed up the sound isnt there.
     

    Street Build 177  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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  6. BLACK'98DSM

    BLACK'98DSM Proven Member

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    Hoover, Alabama
    Ok, actually this is not the throw out bearing. Now that I actually take a moment to think about it, the throw out bearing would make more noise when the clutch is pressed in, because that's when it's under load. But my trans makes less noise when the clutch is pressed in.
     

    Road Race Build 2K  25

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    385  3

    2012 Murray Explorer Dune
    rwd · automatic · Misc Vehicles

    296  6

    2009 Troy Bilt Bronco
    rwd · automatic · Misc Vehicles
    Loading...
    609DSM likes this.
  7. 609DSM

    609DSM Proven Member

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    Joined Aug 13, 2019
    Princeton, New Jersey
    Same. I am stumped on what this is. I did a little googling for like 5 minutes came up with a couple possibilities but I forget what it found LOL.. go figure
     

    Street Build 177  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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    BLACK'98DSM likes this.

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