myfirstl322
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Did they reset the gearbox adaptions??
The ECU 'learns' the required modulation of the valves to attain the best shift transitions and amount of slip etc.....as the clutch plates wear, the required modulation times change and the gearbox adapts to these requirements.
With a new box with new clutch plates, amount of valve modulation required will be different to what the ECU has 'learnt' and need to be reset so it can learn again.
If they have been reset, it could be the ECU is re-learning which can take a couple of hundred miles or so until it shifts smoothly and the clutch packs are fully bedded in.
But, it does sound GB or TC related......but also get them to look at the engine mounts....on the Td6 L322 they are 'active' and are hydraulically controlled....if they are leaking and loosing pressure, engine knock and vibration can be transmitted to the subframe and subsequently cause vibrations.
I'm sure the ZF transmission learns and there is a process to reset the adaptions and I would think the GM box is the same but not certain. I think Bemble mentioned swapping solenoids or something around during reassembly to force a relearn but my memory is faded by Guinness.
There have been a few discussions regarding Dr. Tranny's (ALAN !!) shudder fix which I believe has and hasn't worked.
If you put it in yours you will void any warranty for what they are worth and if your vibration is transmission related then they need to sort it but you could ask your specialist if he minds you trying it I guess
I also believe the shudder that's fixed occurs before the lock up but yours is after
Haven't been out in her yet, hence the going for a big run to check things out.Feel free to have a search around but that's my understanding
Did you check whether your revs drop if you lift your foot off the accelerator when your lock up clutch is supposed to be locked?
I'm not sure if yours locks at 56 mph ish like the ZF
I think you're supposed to use it in the transmission not in the exhaust pipe , AntBoth GM and ZF lock up at a certain point and its around 50-56mph.....
I tried the Lubegard stuff......did feck all in mine!
Might take the jetboil, legitimate excuse for matchesFair one, take your mobile with you and maybe some matches
Flash it up Royal !
I think it is perfectly reasonable to be sheltering it from the wind in the boot above a full tank of diesel while transporting petrol and straw bales
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