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Thread: No response from accelerator D4

  1. #1
    Freddo Guest

    No response from accelerator D4

    Hi Gents, just returned from a camping weekend. Unpacked my ldr 4 TDV6 and went to start it the following day. Engine warning light lit up, car starts and goes into gear but when I press the accelerator down there’s no response. No revs nothing, a few shudders intermittently. What’s the prognosis? Thanks in advance.

  2. #2
    Homestar's Avatar
    Homestar is offline Super Moderator & CA manager Subscriber
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    Throttle pedal sensor? Have you got a diagnostic tool that reads throttle pedal percentage? Most do and even cheap OBDII readers show this generally.
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.

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    What is a ldr 4? Never heard of that model.
    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

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    Quote Originally Posted by 101RRS View Post
    What is a ldr 4? Never heard of that model.
    Discovery 4

  5. #5
    Freddo Guest
    Quote Originally Posted by Homestar View Post
    Throttle pedal sensor? Have you got a diagnostic tool that reads throttle pedal percentage? Most do and even cheap OBDII readers show this generally.
    NRMA ran a scanner and it came back with an egr fault

  6. #6
    Homestar's Avatar
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    Quote Originally Posted by Freddo View Post
    NRMA ran a scanner and it came back with an egr fault
    Did they only look at faults or look at any active data? An EGR fault may limit throttle output, but I'd be checking to see what the pedal was doing as well.
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.

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    Quote Originally Posted by Vern View Post
    Discovery 4
    You need to let the OP explain his use of weird nomenclature.
    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

  8. #8
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    Quote Originally Posted by Freddo View Post
    NRMA ran a scanner and it came back with an egr fault
    You may have that fault but even with failed EGRs the throttle will still work but not all that well - so as Homestar suggests you need to look at the throttle system.
    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

  9. #9
    Freddo Guest
    Quote Originally Posted by 101RRS View Post
    You may have that fault but even with failed EGRs the throttle will still work but not all that well - so as Homestar suggests you need to look at the throttle system.
    Thanks Gents. I’ve got it booked in for repair later this week. I wanted to be across the potential issue/s on the day.

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    Quote Originally Posted by Freddo View Post
    Hi Gents, just returned from a camping weekend. Unpacked my ldr 4 TDV6 and went to start it the following day. Engine warning light lit up, car starts and goes into gear but when I press the accelerator down there’s no response. No revs nothing, a few shudders intermittently. What’s the prognosis? Thanks in advance.
    Not the dreaded faulty stop (brake) light switch problem???
    That's exactly wot happened to me a year ago.
    Suggest replace switch anyway as it can be problematic and only about $30 bucks.
    Before: Ser 2a LWB, Ser 3 S/W, 1979 RR 2 door, 1981 LR Stage 1 V8 (new), 1985 LR 110 V8 County (new), 2009 RRS TDV8
    Now: MY13 D4 TDV6. "E" rear diff. Cambo's magic Engine & Auto Tune. 1968 Austin 1800 Mk1 auto (my 5th)

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