Having issue with Volvo autoshift

Discussion in 'Volvo Forum' started by HwyDragon, Oct 10, 2016.

  1. HwyDragon

    HwyDragon Light Load Member

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    I'm some what new here, first time posting but I've always used this site every time I had issues and its helped out every time. BTW, my issue I'm having with my Volvo Autoshift is that every time the truck is in 11th gear it begins to either jerk, slow down, or refuses to shift into 12th unless I force it to manually. If I force shift it manually it will jerk constantly for some time then eventually stop for a few hundred miles then start again. Has anyone had a similar issue?

    Also I took it to a TA to get the issue diagnosed and the only code it gave was a fuse shortage. I got that taken care of but it hasn't fixed the problem at all.
     
    Last edited: Oct 11, 2016
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  3. DUNE-T

    DUNE-T Road Train Member

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    What year is your truck?
     
  4. HwyDragon

    HwyDragon Light Load Member

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    2013.
     
  5. DUNE-T

    DUNE-T Road Train Member

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    Detroit, MI
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    You have ishift, it should be under warranty till 750k miles. Not many people know how to work on those besides dealers. I got an older Volvo with Eaton Auto shift, had similar problem and ended up replacing few sensors
     
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  6. HwyDragon

    HwyDragon Light Load Member

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    Hopefully its just a few rotten sensors and not the tranny wearing out
     
  7. ryanbob1

    ryanbob1 Light Load Member

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    check codes if any if someone you know has vcads dealers will have it anyways tell them to re calibrate the gearbox and do the gears test on vcads this should narrow your problem down, hear while they are doing both tests for any air leaks, have you had any air dryer problems if so make there is no water in all the air tanks, as this will affect the electronically operated solenoids to fail in the gearbox lid , after that you may have to pull the lid off the gearbox and look inside the lid itself it has 4 selector forks for memory if you heard any air leaking while they were testing you will need to put a new seal kit around $400 in aus
     
  8. CoyoteExpress

    CoyoteExpress Medium Load Member

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    Carlingford NB Canada
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    There is a service note that i-shift wont shift 4 to 5 ....
    Maybe same prob
     
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  9. HwyDragon

    HwyDragon Light Load Member

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    Appreciate all the responses guys, but turns out some kind of kill switch in the same location as the batteries got flipped. According to our terminal's mechanic.
     
  10. HwyDragon

    HwyDragon Light Load Member

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    Being a Volvo, not surprised it was an electrical issue.
     
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