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Thread: Delay in power when accelerating from low speed

  1. #1
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    May 2010
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    Delay in power when accelerating from low speed

    Hi. Has anyone experienced a real delay in power when accelerating from a very low speed. I've been caught out several times when in the Flinders going around a hairpin while climbing a steep incline. Also has occurred several times when entering a major road. Very concerning. Dealer says no faults showing although thinks LR have had other comments and is investigating. LR4 30l not short of power just a real hesitation and delay in accelerating.

  2. #2
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    I have this on a daily basis. A complete dead spot lasting for nearly two seconds most often changing from 1st to second but will also happen in 1st. I have had the service department look at it multiple times and never once do they admit there is an issue even when it occurs in front of me while they are driving! Good luck.

  3. #3
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    Jan 1970
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    A possible reason is this: The gearbox on the D3/4 is a 'learning' one. If you have been driving sedately, then it assumes any one-off sudden flooring of the accelerator could be a mistake so it tries to ignore it.

    I had this issue on my D3 and even, albeit to a smaller extent, after a re-map and the nullifying of the EGR system.

    The Porsche on the other hand....

  4. #4
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    Having driven my RRS for a total of 1500km I have noticed this as well - just assumed it was the learning thingy in the gearbox as I have been driving sedately. I have found that (after owning it for four days) that flooring it rather than half flooring it makes all the difference.

    Garry
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

  5. #5
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    had a sport with this, but it was very very interminted and only the customer could get it to do it,

    very long 3days later and talks with syd/UK, we played with shift stratagys with the gearbox and a new map with the ECM, with alot of downloading and testing we seemd to have fixed it,

    tryed gbox adaptions and no go, so dont think that will stop it from taking off, the adaptions are so fine you hardly notice it,

  6. #6
    Join Date
    Jan 1970
    Location
    Lane Cove
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    You could try turning the DSC off. I've noticed what feels like heaps of lag when i put my foot down, but only when exiting a roundabout, sharp corner etc. It turns out the computer wont give you full throttle with a certain amount of steering lock on. It'll wait until the wheels are straight-ish, then put the throttle on, then the boost builds and then you go, a long time after you asked it to... If turning the DSC off does nothing (it wont get rid of it entirely because DSC is never fully off) or you get that delay with the wheels straight then its definitely worth looking into.

  7. #7
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    I get this in my D4 3.0L every now and then....I too put it down to the adaptive box.

    I either flatten it or go Sport or Manual, if I'm in a 'need to take off fast' area.

  8. #8
    Join Date
    Jan 1970
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    Had it with my V8 D3. It was the thing I hated most about it. And now I have it with my V8 D4.
    (though no where near as bad)

  9. #9
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    May 2010
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    Dalkeith WA
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    Thanks for the comments, at least I know I'm not alone. Just disconcerting when pulling out into traffic.

  10. #10
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    That's very interesting. I get this problem in my RRS 3.0L every time I exit one particular corner on the way to the office. Low speed, quite a sharp turn, and I have to boot it hard to get it to change down. I thought it was just some quirk of the otherwise-excellent gearbox in these cars.
    Must read the manual some time

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