13 speed

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by bluerhino, Jan 29, 2022.

  1. bluerhino

    bluerhino Light Load Member

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    Good day all a friend of mine has issue with his freightliner century 2005 that has 13 speed transmission when he on downhill and on low gear it kicks itself out of gear only on downhill on a flat road no issue whatsoever could you please help with this issue. Thank you
     
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  3. AModelCat

    AModelCat Road Train Member

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    Detent balls/springs worn out or the teeth on the sliding and floating gears on the mainshaft are worn out.
     
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  4. skallagrime

    skallagrime Road Train Member

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    Good to know exactly what it is, done bout 60k miles this way (downhill coast, hit bump, low side of high split jumps out on me, never when im putting power to it)

    Plan on new trans soon anyway (well, been planning on a new one for about 1.5 years but have just dealt with it :p
     
  5. Hammer166

    Hammer166 Crusty Information Officer

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    There's a kit for that problem. I had to do my 07 sometime around 750k miles. It was about $1500, IIRC.
     
  6. Don379

    Don379 Heavy Load Member

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    How about a severly worn out sliding clutch and/OR the gear set it slides into?
     
  7. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    I'm pretty sure that's what @AModelCat is saying.

     
  8. Don379

    Don379 Heavy Load Member

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    OMG. I dont know how i read his post and read over that. Sorry. Have alot of problems on my mind
     
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  9. AModelCat

    AModelCat Road Train Member

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    I've seen your thread, no one would blame you for being a little distracted.
     
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  10. Don379

    Don379 Heavy Load Member

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    thanks man
     
  11. skallagrime

    skallagrime Road Train Member

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    Was a junkyard trans 600k ago, im sure im wasting money but i am not digging inside a trans myself and the shop i use is fine on swapping anything i give him but wont rebuild em himself.

    In my opinion, im buying peace of mind when i do the new trans, but you can justify a lot to yourself, so i wont take it badly if you call me an idiot on that :p
     
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