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Is an acceleration judder always the torque converter?
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Garwood56
 


Member Since: 24 Jun 2021
Location: West Sussex
Posts: 404

United Kingdom 2005 Discovery 3 TDV6 SE Auto Cairns BlueDiscovery 3
Is an acceleration judder always the torque converter?

Ok so just starting to get a slight judder under acceleration and occasionally up a steep hill. However it only happens now and then. Just driven 500 mile round trip to North Wales and never did it. Revs don’t seem to fluctuate. Had full gearbox flush last year. Could it be something else? I maintain my Disco well, diffs oil changed 2 month ago , transfer case oil changed last year, oil with genuine LR fluid. It definitely feels mechanical. Ideas welcome. Thanks.
  
Post #230728211th Sep 2022 9:06 pm
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Global Puffin
 


Member Since: 23 Dec 2020
Location: Stirling, Scotland
Posts: 223

United Kingdom 2005 Discovery 3 4.4 V8 S Auto Zambezi SilverDiscovery 3

I'm getting similar - the vibration feels too fine to be the TC, and it doesn't change at all when the car changes gear. The car smoothly pulls away and when I floor the car going uphill the vibration is much less noticeable and the car downshifts on point and feels great. Apart from the vibration. I almost felt sick at the thought of the TC but I'm actually thinking it's like a prop shaft or a caliper maybe??
 2005 D3 V8
2010 MX-5
www.instagram.com/global_puffin 
 
Post #230728411th Sep 2022 9:35 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10336

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

Worth adding Dr tranny to the gearbox.
It will rule out the TC if nothing else
  
Post #230732512th Sep 2022 8:06 am
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ruggedpeak
 


Member Since: 10 Jun 2010
Location: UK
Posts: 1625

United Kingdom 2007 Discovery 3 TDV6 XS Auto Zermatt SilverDiscovery 3

For info, my auto has had a slight judder at 40mph in the normal gear for that speed for the last 80k miles. If I manually drop into a lower gear at the same speed it disappears, so gear/speed specific. It also now does it at 50 and occasionally at about 30. Same thing, change to different gear and it goes.

I had a flush about 50k miles ago and the outgoing oil was not burnt or anything. I added some Dr Tranny and it reduced it for a while. But given it has gone for 80k without blowing up so far (!!) whatever causes it is not terminal in the short term.

No idea what it is, but if your symptoms match it may be more annoying than disastrous.
 Tony

Club RLD Wheel Protector & Sump Guard
Club 4x4 Info activated 
 
Post #230736712th Sep 2022 12:01 pm
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