torque converter slipping?

  1. brokenbiker

    brokenbiker Member

    Messages:
    10,433
    Location:
    Llanbobyll, south wales
    mate has got himself an auto jag...2.1 v6 x-type.

    he thinks the torque converter is slipping, but i know little to nothing about the actual mechanics of a torque converter apart from its full of liquid that gets thrown about through various vanes...

    so basically he is complaining that when driving at normal every day speed and accelerating to anywhere up to 50mph the revs fly up to about 2500-3000 and the speed builds slowly, he said its like a manual clutch slipping...revs climb quick, speed follows slowly...

    he did say however that if he plants his foot down it seems to function properly and doesnt seem to slip...

    also, gear changes are smooth reagrdless of driving style, no juddering, no weird noises etc...

    i said id ask here as ive no idea about autos really and it doesnt seem to correlate to what the disco does really...although i am aware that the engine RPM will always be a bit higher due to the fact its basically powering a pump...

    any ideas on what to suggest to him?
     
  2. spencer 427

    spencer 427 Member

    Messages:
    5,522
    uk colchester
    Location:
    uk colchester
    Sounds like the bands are slipping
     
  3. brokenbiker

    brokenbiker Member

    Messages:
    10,433
    Location:
    Llanbobyll, south wales
    bands?
     
  4. MattH

    MattH Member

    Messages:
    3,463
    Location:
    Bristol
    Oil and filter change in the auto box.
     
  5. rikrobson

    rikrobson Member

    Messages:
    3,577
    Location:
    Perth, Scotland
    when was the ATF last checked/changed?
     
  6. brokenbiker

    brokenbiker Member

    Messages:
    10,433
    Location:
    Llanbobyll, south wales
    could it be that simple?
     
  7. brokenbiker

    brokenbiker Member

    Messages:
    10,433
    Location:
    Llanbobyll, south wales
    no clue unfortunately...auction car with nothing but a log book and a key
     
  8. Craig-SM

    Craig-SM Member

    Messages:
    204
    Location:
    Leeds
    When did he last change the fluid?
     
  9. spencer 427

    spencer 427 Member

    Messages:
    5,522
    uk colchester
    Location:
    uk colchester
    The bands are what link the gears together in an auto box. When they slip is normally due to over heating of the trans fluid. A filter and fluid change will be first on list
     
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  10. brokenbiker

    brokenbiker Member

    Messages:
    10,433
    Location:
    Llanbobyll, south wales
    seems to be everyones answer so will pass it on, cheers all
     
  11. brokenbiker

    brokenbiker Member

    Messages:
    10,433
    Location:
    Llanbobyll, south wales
    as an aside to this, i dont know when the disco was last done...it has service history but no mention in the receipts about gearbox filters or fluid...

    who knows what i would need and how much of it?
     
  12. MattH

    MattH Member

    Messages:
    3,463
    Location:
    Bristol
    Some auto boxes have multiple wet clutches like a bike clutch. It the oil is degraded it can cause the clutches to slip so it takes much more revs to fully engage the next gear.
    This causes slow changes and sometimes hard or jerky changes.
     
  13. Craig-SM

    Craig-SM Member

    Messages:
    204
    Location:
    Leeds
    @brokenbiker You’ll probably get it as kit from any decent 4x4 parts shop
     
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  14. colnerov

    colnerov Member

    Messages:
    3,047
    Location:
    Nr Gatwick UK
    Hi, What is the fluid like? Red, pink, brown, clear, milky? Does it smell of burnt clutch lining?

    Colin
     
  15. Craig-SM

    Craig-SM Member

    Messages:
    204
    Location:
    Leeds
    I don’t think the X-type has a dip stick to check the fluid so they’ll only know when the drop the old stuff
     
  16. brokenbiker

    brokenbiker Member

    Messages:
    10,433
    Location:
    Llanbobyll, south wales
    no idea as yet, he only came to me today to ask if i knew what the problem was...will likely have a look on th eweekend if he canget the service items in
     
  17. brokenbiker

    brokenbiker Member

    Messages:
    10,433
    Location:
    Llanbobyll, south wales
    yeah had a quick google and found a filter and o-ring kit and 5 litres of fluid...75w90 sound right?
     
  18. indy4x

    indy4x Forum Supporter

    Messages:
    1,362
    Location:
    Pontypool, South Wales. UK
    If you have a D2, register on the D2BC forum, loads of useful stuff on there that will answer most of your questions

    I'm assuming yours is an Auto? Either way gearbox and transfer box use different oils
    From memory,

    Transfer box is 75W something
    Manual box is ATF Dextron III
    Auto box no idea but defo not 75W90
     
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  19. Craig-SM

    Craig-SM Member

    Messages:
    204
    Location:
    Leeds
    I assume you have a manual gearbox not auto, if so sounds about right but I can’t be 100% as I’m a Mitsubishi guy not LR
     
  20. brokenbiker

    brokenbiker Member

    Messages:
    10,433
    Location:
    Llanbobyll, south wales
    will have a look see what info i can find. yes its an auto...must admit its one of the smoothest autos ive driven...just wish it used a little bit less fuel haha
     
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