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Thread: td5 auto gearbox behaviour

  1. 20th April 2010, 08:47 PM #1
    danl
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    td5 auto gearbox behaviour

    Hi all,
    A quick question about the TD5 auto gearbox...
    When travelling at around 100 kph the car is working at about 2200 rpm. If travelling at this speed downhill etc, when I take my foot off the accellerator, should the gearbox shift into "idle" revs when coasting. ??
    In other autos (not LR's) I have driven this seems to be normal behaviour.
    In my TD5, the car just holds the 2200 rpm, and gives the car an engine braking effect, even when coasting downhill.
    At lower speeds (and possible a lower gear) the car will drop to about 800 rpm when coasting.
    Otherwise the car drives perfectly, so not even sure if this is a problem or not.

    Any feedback appreciated.
    cheers,
    Dan'l
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  2. 20th April 2010, 08:50 PM #2
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    Slunnie
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    Thats normal. Its just because the torque converter is locked up.

    When I was having auto problems (self induced) my TC wasn't locking as how you have described other autos. It really wasn't very nice to drive like that.
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~
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  3. 21st April 2010, 08:01 PM #3
    danl
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    OK, thanks for the reply
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  4. 21st April 2010, 08:46 PM #4
    trev
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    TD5 auto gearbox behavoiur

    Pretty well anytime you back off the accelerator in a TD5 with the ZF transmission it will drop back to idle.
    Normal behaviour, just a characteristic of the transmission.

    Trev.
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  5. 22nd April 2010, 08:04 AM #5
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    waz
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    Quote Originally Posted by trev View Post
    Pretty well anytime you back off the accelerator in a TD5 with the ZF transmission it will drop back to idle.
    Normal behaviour, just a characteristic of the transmission.

    Trev.
    Mine only does this below about 80kph. Above 80 it's locked up like a manual.

    Waz
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  6. 22nd April 2010, 08:35 AM #6
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    Pedro_The_Swift
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    and really the only downfall of taking a ZF off road,,
    that OH CRAP moment when you think the cars just going to run away,,
    "How long since you've visited The Good Oil?"

    '93 V8 Rossi
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