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Thread: Possible gearbox or transfer problem need help diagnose it

  1. #21
    Join Date
    Jan 1970
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    Mine has failed, pending and confirmed ticked.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

  2. #22
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    Quote Originally Posted by Graeme View Post
    Mine has failed, pending and confirmed ticked.
    Thanks Graeme
    Went for a drive around the block a few times tonight went into F mode about 6 times and went back to normal when restarting the car was doing live data recording while driving the car at about 45 to 50 km it would go from third all the way up to sixth gear then F mode.

    It is still F mode when in reverse gear hope it helps someone to help me figure this out am starting to think about buying another gear box then sending this one in to be rebuilt as my other car has finally been written off so have almost run out of time to sort this out as I need to start daily driving it sooner rather than latter.

    Here are the codes I haven't looked them up yet.

    Regards
    Kynan

  3. #23
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    Unfortunately that sounds too similar to what happened to my D4's gbox which was the demise of the white-metal stator bushes causing insufficient pressure to lock the E clutch quickly enough, with the first indication not successfully engaging 6th gear, although no other problems initially. P0735 was one of mine's codes although P2704 was the prime indication of the worn bushes so perhaps a different problem.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

  4. #24
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    Thanks for that
    Had a better run today got the same codes as last night. Running in auto it still playing up all the time but could only get to 60 km. But drives a lot better in sport mode and only goes in to F mode when I was stopped at the lights so pretty sure it the value body that's playing up from what I could see running live data on the gear box and the feel of the car when it's trying to chang gears. I still have a nagging feeling it could be the CPU in the box but it getting lower in the thought process.
    so that leads to the next question is does anyone make a valve body it. If so wear is the best place to get it and has anyone used it and how did it work out?

    Regards. Kynan

  5. #25
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    I'd be getting the opinion of a ZF specialist who should quickly establish the real cause unless they have the attitude of just rebuild the gearbox regardless.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

  6. #26
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    May 2020
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    Just a quick up date, finally got the car in to the only shop in town that has been recommended to me (he is in high demand and only takes the work he wants) from the two land rover specialist shops in the area that I trust he is going to test the car but thinks I was on the right track so looks like it a new value body unit, as the two speed sensor are built in to the control module and aren't a serviceable part and the valve body is more than likely damage even if only miner from when it locked up, will do it up and keep it for spare. But will know in a day or two when he gets around to testing it and looking in side it

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