Valvolainen
Member Since: 01 Jan 2022
Location: Haugesund
Posts: 6
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| Massive judder when coasting, but only in 5th gear? |
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Hi,
I have a 2006 D3 tdv6 auto, 200k miles. (EU3 emissions wise? No dpf)
The engine has been tuned at some point, and egr is blanked.
When I drive it, the engine runs normal most of the time.
Except when 5th gear is engaged, and engine has very low load. Then the engine starts juddering and the car is shaking badly. When I press or lift the throttle, it immediately goes away, I cannot reproduce this in any other gears which puzzles me, because I thought it to be a injector thing. I had a failure code on an injector (below 650 in 'open time'), so I replaced this, I thought it helped, but it didn't. Also cleaned the sensor in the intake manifold (in the middle on top) with brake cleaner.
It's been like this for about 12k miles,
It does not matter if the engine is hot or cold. I've tried adding some fuel additive (injector cleaner) in my last tank fill, but no change in behaviour.
No faults have been logged with the engine or gearbox since injector replacement.
Gearbox and converter has been replaced, think this was at about 170k miles, not that it matters, because I don't know what they slipped in, and I don't have the classic judder under load where the torque converter is slipping.
Any tips from the wise ones?
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 18th Sep 2024 7:32 am |
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Flack
Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6308
  
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Have you checked the center bearing on the prop-shaft?.
Flack 
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| 18th Sep 2024 8:24 am |
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Valvolainen
Member Since: 01 Jan 2022
Location: Haugesund
Posts: 6
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No, i haven't! This haven't once crossed my mind. I will do this tomorrow if i can find the time.
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| 18th Sep 2024 7:03 pm |
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