Steering gear box leak.

Discussion in 'Volvo Forum' started by Bubaka, Apr 27, 2013.

  1. Bubaka

    Bubaka Bobtail Member

    19
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    Apr 6, 2009
    Albany, ny
    0
    Hi, My truck is a 2006 VNL670 with a TRW THP605299 steering gear box which has a leak from the vent hole on the side of the box. The vent hole has a rubber plug. The leak is not really heavy, I don't even add fluid in a month. Also, the steering box makes rattling noise sometimes when you steer heavily in low speeds (backing to a dock etc). What could be wrong with the gear box, how should I approach it.
     
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  3. nasriza

    nasriza Road Train Member

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    1,713
    Feb 1, 2013
    Chicago, IL
    0
    Change the box you're not going to fix the leak and there is no point to open it just replace it and be done
     
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  4. MZdanowicz

    MZdanowicz Light Load Member

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    207
    Apr 7, 2013
    peabody, ma
    0
    bubaka-had same problem in my yard dump IH2574. just as you described. nasriza is right your not going to stop it. Lucas oil co steering stop leak worked great. that was my first and only step before I replaced it. put in 12/12 and still not leaking. you can add or empty and use just the product. try before going next step. put cardboard under leak to monitor drips
     
  5. adreanis

    adreanis Bobtail Member

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    Apr 7, 2013
    CHICAGO, IL
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    Replace asap, had same problem, does not worth repairing, dont get caught at the dock; towing will charge u triple.
     
  6. lastgoodusername

    lastgoodusername Medium Load Member

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    Dec 18, 2008
    central NC
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    i vote for replacement as well. a couple hour job at best. use an engine hoist as the box is pretty heavy. johnny
     
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  7. eeb

    eeb Heavy Load Member

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    Mar 24, 2013
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    If it doesn't leak much, I'd try the Lucas stuff first. Keep the steering box clean, as well as the surrounding area to avoid it looking out of place. Good luck.
     
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  8. Pablo-UA

    Pablo-UA Road Train Member

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    Oct 11, 2010
    Borispol, Ukraine
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    ususally driving with clogged PS fliud filter makes upper seal leaking.
     
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  9. eeb

    eeb Heavy Load Member

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    Mar 24, 2013
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    Yeah, the PS filter is often overlooked and can also cause the chattering, be a good place to start if you haven't replaced it recently.
     
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  10. Bubaka

    Bubaka Bobtail Member

    19
    4
    Apr 6, 2009
    Albany, ny
    0
    Sorry for late reply. I will use Lucas for now and then eventually replace it. I haven't thought about filter to be honest, will replace that with the fluid too. I will post how it went. Thanks, your guys rock!
     
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  11. One_tooth_wonder

    One_tooth_wonder Light Load Member

    172
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    Aug 7, 2008
    Cleveland, TX
    0
    I just got a ticket for the steering gearbox leaking on the Volvo I drive. It was a very small leak, too. Maybe a quart every six weeks. Complete bs.
     
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