Home > Technical (L322) > Transmission hiccup 8spd |
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kevinp Member Since: 28 Sep 2019 Location: Telford Posts: 1119 |
The dreaded shudder on an auto is usually related to the TC. I'm trying to find out right now if there is a software upgrade for the gearbox.
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3rd Sep 2021 6:00pm |
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rvbush Member Since: 08 Jan 2016 Location: Leamington Spa Posts: 520 |
TC is pretty much what I thought. It's far from bad yet and has only progressed very very slowly since I first noticed it about 10k miles ago. I'll keep the proverbial eye on the situation. Drives:
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4th Sep 2021 8:40am |
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cass Member Since: 12 Oct 2011 Location: northumberland Posts: 695 |
Have you checked the fluid level?
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4th Sep 2021 11:44am |
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cass Member Since: 12 Oct 2011 Location: northumberland Posts: 695 |
Also worth checking the correct fluid was used when it was changed |
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4th Sep 2021 11:47am |
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rvbush Member Since: 08 Jan 2016 Location: Leamington Spa Posts: 520 |
Correct fluid was used, it did it slightly before it was changed (not why I had it done, it was on 75k so I thought it was a good idea). Still wondering if a mega flush might improve things. I might try it but it's a dilema, if it works, great, but if it doesn't it's a waste. Drives:
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4th Sep 2021 12:14pm |
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DrRob Member Since: 16 Apr 2015 Location: Petersfield, Hampshire Posts: 4235 |
Bodsy is your man for a Megaflush. Comes to you on your drive.
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4th Sep 2021 1:08pm |
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JayGee Member Since: 27 Jul 2021 Location: London Posts: 2695 |
I'd get a ZF gearbox specialist to diagnose it properly before changing more oil esp if it's already been serviced. |
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4th Sep 2021 2:12pm |
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rvbush Member Since: 08 Jan 2016 Location: Leamington Spa Posts: 520 |
Thanks, and yes I agree. It's not bad yet, just a gentle shudder so I'm going to wait and see what develops. I'vebeen in touch with Bodsy and he says it sounds like an internal problem rather than needing an oil flush. Drives:
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4th Sep 2021 3:16pm |
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mjdronfield Member Since: 04 Nov 2011 Location: Derbyshire Posts: 7635 |
I’m still trying to get hold of Bodsy….. at least I know he’s real 🤣
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4th Sep 2021 3:43pm |
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cass Member Since: 12 Oct 2011 Location: northumberland Posts: 695 |
If you’re happy it’s got the right fluid in then I’d still check the l level before spending on diagnosis, can’t be any harm checking the simple/cheap things first |
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4th Sep 2021 4:12pm |
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rvbush Member Since: 08 Jan 2016 Location: Leamington Spa Posts: 520 |
That's true, and a good point. My Dad always told me to check the simple things first (he was a mechanic)! Drives:
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5th Sep 2021 8:01am |
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coopss Member Since: 21 Apr 2018 Location: Hampshire Posts: 281 |
I have a similar issue - mainly at very low rpm. Slight shudder, release throttle, on throttle, fine. Just had a new TC - it’s going back to check levels 1995 4.6 v8, green/tan (long gone)
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5th Sep 2021 9:02am |
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rvbush Member Since: 08 Jan 2016 Location: Leamington Spa Posts: 520 |
Can you let us all know if that helps please? Drives:
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6th Sep 2021 12:21pm |
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Fox889 Member Since: 04 Jun 2019 Location: Bury St Edmunds. Suffolk Posts: 662 |
The downside of an ordinary 'oil & filter' change [gearbox] is only around 40% of the oil is changed. A mega flush changes around 95% of the oil & at 88k I personally would have a mega flush done regardless. £300-£400 should be ample & much cheaper than any gearbox work that you may look at. Might turn out to be the TC but the easiest & cheapest way forward is a mega flush.
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7th Sep 2021 8:07am |
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