2018 V8 Hesitation on Acceleration? - Page 3
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Thread: 2018 V8 Hesitation on Acceleration?

  1. #31
    FRESHMAN ROVER
    Join Date
    February 24th, 2019
    Posts
    15

    Re: 2018 V8 Hesitation on Acceleration?

    Well, I just picked my new rover up for the second time, and yes, their is a bulletin that has just been posted by Land Rover, addressing this issue. It does cover both the V8 and the V6. When the fix will come out is another story. So like they told me, be patient, but at least LR is away of the issue.

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  3. #32
    SOPHOMORE ROVER
    Join Date
    July 30th, 2007
    Location
    Chicago, Illinois
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    419

    Re: 2018 V8 Hesitation on Acceleration?

    Flint,

    Do you have a bulletin number that you can post? That may be helpful to other members of the forum when interacting with their dealers.

  4. #33
    FRESHMAN ROVER
    Join Date
    February 24th, 2019
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    15

    Re: 2018 V8 Hesitation on Acceleration?

    I do not see a bulletin number, the only number mentioned are at the top. D7U quipped with AJ126 hesitation on acceleration. I would be happy to take a photo of the copy my dealer attached to my service invoice? Would need help posting that.

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  6. #34
    FRESHMAN ROVER
    Join Date
    December 21st, 2018
    Location
    Boston, MA
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    141

    Re: 2018 V8 Hesitation on Acceleration?

    I've driven my wife's "new" CPO 2017 SCV8 L405 four or five times and I haven't noticed any hesitation on acceleration, rolling stops or otherwise. All I've noticed is the vehicle is more comfortable and rides better than her old 2012 GL550.
    2019 RRS SCV8 ATB L494, Indus Silver
    2017 Range Rover SCV8 L405, Scotia Gray (wife's car)

  7. #35
    FRESHMAN ROVER
    Join Date
    April 27th, 2018
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    Singapore
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    26
    Yes pls. Would love to have the bullintin too!

  8. #36
    SOPHOMORE ROVER localbrew's Avatar
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    October 2nd, 2009
    Location
    PDX, OR
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    254

    Re: 2018 V8 Hesitation on Acceleration?

    My wife's 2016 Td6 has exhibited the hesitation issue as well, it's more pronounced when the vehicle is colder.
    2016 Range Rover HSE Td6
    2015 BMW X5 35d M Sport
    2010 Range Rover HSE (SOLD)
    2006 RRS Supercharged - Bone stock (SOLD)
    2004 Range Rover with updated navigation MK4 (SOLD)
    2003 Discovery Forrest Green (SOLD)
    2000 Discovery Black (SOLD)
    1998 Range Rover (SOLD)
    1992 Range Rover Classic (SOLD)

  9. #37
    Premium Member
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    July 2nd, 2006
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    Re: 2018 V8 Hesitation on Acceleration?

    I have a 2015 SCV8 and it has this same throttle lag issue. Definitely a software thing. Ridiculously annoying. And even dangerous when trying to pull out into traffic, from a stop or slow roll. My LR dealer tech has driven the vehicle and just kinda shrugged "that's how they are". I call BS. Subscribed here in hopes someone finds a solution.

  10. #38
    FRESHMAN ROVER
    Join Date
    March 9th, 2016
    Location
    San Francisco
    Posts
    52

    Re: 2018 V8 Hesitation on Acceleration?

    Both my current 2016 L405 AB and previous Sport L320 Series 2(both 5.0 S/C) seem to rev in neutral for a second or so before lurching into gear, my supposition being that it’s set by default to start in 2nd and then drops down into 1st when it senses a more enthusiastic throttle opening. Less bad in Sport and when warm.

    Sounds like a different issue though?

    Either way, considering the number of vehicles with this combination of 5.0l S/C and transmission must run into the hundreds of thousands at this point, so it’s bizarre.
    Rob

    2016 FFRR 5.0 SC Autobiography LWB
    2010 Sport SC with 618bhp ETG Tune
    2013 Maserati GranCabrio
    2016 eGolf
    1968 Jaguar E-Type Convertible

  11. #39
    FRESHMAN ROVER
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    September 29th, 2018
    Location
    long island, ny
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    Re: 2018 V8 Hesitation on Acceleration?

    I just posted this in the l494 section under throttle delay and I am posting it here just in case you dont look there.

    So even though they have said a software update should be out in April this SSM does not leave me feeling confident. The typical answer is that it is operating within spec's. That doesnt mean that they didnt make a mistake when building it and shouldnt fix it.

    Check this out: https://static.nhtsa.gov/odi/tsbs/20...54062-9999.pdf
    2019 Range Rover Sport HSE Dynamic

  12. #40
    SOPHOMORE ROVER
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    July 30th, 2007
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    Chicago, Illinois
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    Re: 2018 V8 Hesitation on Acceleration?

    Thanks for posting this, Bill. This may sound stupid, but what is an EPQR and a TA?

  13. #41
    FRESHMAN ROVER
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    September 29th, 2018
    Location
    long island, ny
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    Re: 2018 V8 Hesitation on Acceleration?

    Quote Originally Posted by stemikel View Post
    Thanks for posting this, Bill. This may sound stupid, but what is an EPQR and a TA?
    Not stupid at all..... Electronic Product Quality Reporting you might be interested in reading this..


    https://training.landrover.com/cours...2010_18_10.pdf
    2019 Range Rover Sport HSE Dynamic

  14. #42
    FRESHMAN ROVER
    Join Date
    February 24th, 2019
    Posts
    15

    Re: 2018 V8 Hesitation on Acceleration?

    That was the same bulletin my dealer gave to me. I am really getting anxious to have this problem resolved. No kidding, it is getting dangerous!

  15. #43
    FRESHMAN ROVER
    Join Date
    February 24th, 2019
    Posts
    15

    Re: 2018 V8 Hesitation on Acceleration?

    Anyone have any updates? I was at my dealer complaining again, and would like to tell them I am parking my vehicle until the problem is resolved, and that they should credit my monthly lease payment, until problem is solved? Or give me a new one?

  16. #44
    SOPHOMORE ROVER
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    July 30th, 2007
    Location
    Chicago, Illinois
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    419

    Re: 2018 V8 Hesitation on Acceleration?

    This may be a little off topic. My RR is in the dealership for service and I was given a 2019 Epace as a loaner. I had the throttle delay happen to me yesterday. I now see what you are all talking about. I had this occur while trying to access a 4 lane highway with a 55 mph speed limit. Scared the heck out of me and two other drivers.

    This was exactly what Bill2019 had described in an earlier post. My point is that this problem affects Jaguar as well.

    I certainly hope that they come up with a solution soon.

    Steve

  17. #45
    FRESHMAN ROVER
    Join Date
    June 5th, 2018
    Posts
    155

    Re: 2018 V8 Hesitation on Acceleration?

    If this is possible, has anyone tried monitoring the engine systems (ECM) parameters while driving? It might be interesting to view such parameters as air flow, throttle movement, cam timing, etc. to see if anything is less than instantaneous when moving the throttle. Air flow, fuel metering, cam and ignition timing, throttle movement, O2 sensor activity, etc. Anything that appears to lag behind throttle movement may offer some info. I would be curious to hear some feedback here. I may be able to offer some solutions after perusing this info. Ray

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