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Thread: gearbox, slippage?

  1. 17th July 2011, 10:11 AM #1
    Chuck.B Guest

    Question gearbox, slippage?

    Hi guys. Problem with auto gearbox on 2003 disco2 V8 running dual fuel.
    when cruising at 60-70ks and what seems like fourth gear the gearbox seems to transmit drive unsteadily. If it was a manual gearbox i would sap unsteady slippage. trucks done 270K. No other problems. gearbox had filter changed 80k. What could the problem be???
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  2. 17th July 2011, 10:21 AM #2
    Fluids's Avatar
    Fluids
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    Torque converter .... locking/unlocking constantly ?

    If it is that it could cost some $$$$
    Kev..

    2014 Isuzu MUX LST with fruit
    2008 Isuzu D-Max
    2015 Kimberley Kamper "Classic"

    Gone ... 2004 D2a Td5 Auto "Classic Country" Vienna Green
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  3. 17th July 2011, 10:26 AM #3
    Chuck.B Guest

    Question gearbox slippage??

    Hi guys. i have a problem with the auto gearbox on a 2003 disco2 V8.270Ks. When doing about 60-70kph in what feels like fourth gear the seems to be an unsteady transmitting of drive to the truck. If it was a manual i would say its slipping. But this is an auto.??? Any ideas?? the filter was changed at 80Ks. Everything else fine. runs well.
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  4. 17th July 2011, 10:34 AM #4
    Pedro_The_Swift's Avatar
    Pedro_The_Swift
    Pedro_The_Swift is offline The MOD Father
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    so, are you saying the box has done 80k to 270k without a service?
    or ??
    "How long since you've visited The Good Oil?"

    '93 V8 Rossi
    '97 to '07. sold.
    '01 V8 D2
    '06 to 10. written off.
    '03 4.6 V8 HSE D2a with Tornado ECM
    '10 to '21
    '16.5 RRS SDV8
    '21 to Infinity and Beyond!

    1988 Isuzu Bus. V10 15L NA Diesel
    Home is where you park it..

    [IMG][/IMG]
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  5. 17th July 2011, 10:48 AM #5
    Chuck.B Guest
    The vehicle has done 270K. I have a receipt for gearbox filter being changed at 80K. Nothing since. Do you think that could be giving the slippage?
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  6. 17th July 2011, 10:57 AM #6
    Pedro_The_Swift's Avatar
    Pedro_The_Swift
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    whats the service schedule?
    every 40K?

    I'd get it serviced and see how it goes,,


    there is a tute in TGO
    "How long since you've visited The Good Oil?"

    '93 V8 Rossi
    '97 to '07. sold.
    '01 V8 D2
    '06 to 10. written off.
    '03 4.6 V8 HSE D2a with Tornado ECM
    '10 to '21
    '16.5 RRS SDV8
    '21 to Infinity and Beyond!

    1988 Isuzu Bus. V10 15L NA Diesel
    Home is where you park it..

    [IMG][/IMG]
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  7. 17th July 2011, 11:02 AM #7
    Chuck.B Guest
    will do.
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  8. 17th July 2011, 11:13 AM #8
    RR P38's Avatar
    RR P38
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    Quote Originally Posted by Chuck.B View Post
    The vehicle has done 270K. I have a receipt for gearbox filter being changed at 80K. Nothing since. Do you think that could be giving the slippage?
    This is real bad.
    That sort of milage without a fluid change.
    Definitely get it FLUSHED and a new filter.
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  9. 17th July 2011, 11:36 AM #9
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    Slunnie
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    Quote Originally Posted by Fluids View Post
    Torque converter .... locking/unlocking constantly ?

    If it is that it could cost some $$$$
    I'd say its the torque converter also. It doesn't lock up in 4th until about 80km/h. At that speed I'm pretty sure mine is mainly unlocked so you will get "slip", but its normal.
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~
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  10. 17th July 2011, 01:34 PM #10
    Fluids's Avatar
    Fluids
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    Simon, V8's lockup at around 60km/hr I believe ... hence his 60-70 issue.

    Td5 locks at around 80.

    ... even more of a pointer to the TC lockup being the culprit.
    Kev..

    2014 Isuzu MUX LST with fruit
    2008 Isuzu D-Max
    2015 Kimberley Kamper "Classic"

    Gone ... 2004 D2a Td5 Auto "Classic Country" Vienna Green
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