Vibrating / Juddering - Vauxhall Antara Forums
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post #1 of 7 (permalink) Old 27th July 2020, 22:35 Thread Starter
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Vibrating / Juddering

Hi when my antara is idling there is a judder or vibrating motion has anyone else experienced this And no what the problem is TIA
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post #2 of 7 (permalink) Old 28th July 2020, 10:21
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Guessing Engine on 3 cylinders or clutch dual Mass Flywheel problem. Richy
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post #3 of 7 (permalink) Old 28th July 2020, 14:39
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I agree with Richy

I had a dual mass flywheel start to go on a BMW X3. The mechanic told me to hold the clutch in at idle... if it improved the judder / knocking then it was a sign it was on its way out!

The other thing it could be is that it is trying to a do regen of the DPF which can cause things to go a bit lumpy... but of course this would be happening all the time.

good luck
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post #4 of 7 (permalink) Old 28th July 2020, 20:41 Thread Starter
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Hi thanks for the advice, the regen light came on it done what it was supposed to and then went off, but the car still Judders at idle and dipping the clutch doesn't make a difference
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post #5 of 7 (permalink) Old 29th July 2020, 06:29
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You could try Redex additive you get from supermarkets. My MX5 was running lumpy and I tried it and it worked, I think it was either an injector slightly blocked or dirt under one of the valve seats. Obviously it was petrol though. Richy
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post #6 of 7 (permalink) Old 29th July 2020, 07:59 Thread Starter
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I put redex in 3 days ago Iím gonna do a long distance run in it and will see what itís like cheers for the advice👍🏻
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post #7 of 7 (permalink) Old 29th July 2020, 19:42
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From the RAC:

If there is no misfire or judder when driving and this only happens when idling, possibly a small air leak on the vacuum side of the engine (intake side). Easy test is to spray brake cleaner all over the engine with it idling - NOT the exhaust - and if the engine speeds up for a moment or two then there is a small leak. Then you need to try and pinpoint it using the spray at one component at a time.
Could also be an electrical component such as the crankshaft sensor showing its age but it would need to go on diagnostic equipment to check.
The click could be partial failure of a spark plug or the coil which sits on top of it and that would give the rpm drop too.

2015 2.2 CDTi SENav 163ps manual 4x4 in Carbon Flash with 19\" alloy spare towing a Bailey Unicorn III Madrid @ 1500kg.
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