Volvo Ishift Transmission air leak

Discussion in 'Volvo Forum' started by Oacosta, Dec 27, 2021.

  1. Oacosta

    Oacosta Bobtail Member

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    Dec 27, 2021
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    I’m havig an issue with my volvo Ishift transmission. Its leaking air from on top of the transmission and the mechanic dont know what is causing it. If i supply air to the truck using another truck the leak stops
     
    Last edited: Dec 27, 2021
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  3. nasriza

    nasriza Road Train Member

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    Probably cylinder housing is leaking thru or your tecu is bad just had this prob 2 weeks ago
     
  4. Oacosta

    Oacosta Bobtail Member

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    Dec 27, 2021
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    How did you end up solving it?
     
  5. nasriza

    nasriza Road Train Member

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    Drop trans out. Removed cylinder housing and tecu and supplied air pressure to run tests on bench found out tecu was leaking replaced it programmed and all good.
     
  6. nasriza

    nasriza Road Train Member

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    Where is truck located
     
  7. Oacosta

    Oacosta Bobtail Member

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    Dec 27, 2021
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    New Jersey
     
  8. nasriza

    nasriza Road Train Member

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    Chicago, IL
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    I don’t know if your mechanic can do it u need special wiring to be able to remove housing from trans. Either u have to find someone that can work on this or take off trans and send it to reman place like Weller maybe they can fix it u can bring it by me I can fix it don’t know anybody out there that can do this. If it is tecu they r on back order right now from Volvo so r the housings. I usually try to keep stock and should have it but again I’m in chicago no where close to Jersey.
     
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