Home > Technical (L322) > 2011 4.4 TDv8 Judder |
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Jamesonfox Member Since: 06 Sep 2022 Location: Wales Posts: 22 |
The exhaust. |
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8th Oct 2022 12:13pm |
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kokamagi Member Since: 31 May 2020 Location: Viljandi Posts: 84 |
Can you guys, who have done the PCM update by LTB00454v2, share your PCM (or ECM) data? I want to know if mine has been done, so need comparsion data. I've also felt a juddering few times, while cruising at highway speeds over 110 km/h. Really worrysome feeling.
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10th Nov 2022 9:06am |
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pvb1@sky.com Member Since: 28 Jul 2022 Location: Milton Keynes Posts: 3 |
I’ve had the same issue. Juddering at 20mph when you lightly touch the throttle then disappearing if you floor it. The problem was cylinder 6. Burnt inlet valves, no compression. Took months to find issue as these engines are by reputation bullet proof.
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30th Jan 2023 8:48pm |
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pcourtney Member Since: 14 Jan 2020 Location: Stansted Posts: 803 |
PVB1 - was it the firing order cylinder 6, or cylinder 6 position in the engine bay ?
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30th Jan 2023 9:51pm |
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pvb1@sky.com Member Since: 28 Jul 2022 Location: Milton Keynes Posts: 3 |
Position in the engine bay. It also plays havoc with the DPF, filling it over a matter of weeks then days. Look at the valve top right. |
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31st Jan 2023 5:30am |
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Phoenix Member Since: 16 May 2022 Location: Gone Posts: 1631 |
Have you checked the cylinder balances? it may give a clue as to which cylinder needs further investigation (compression test, leakage test etc.) |
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31st Jan 2023 7:11am |
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pcourtney Member Since: 14 Jan 2020 Location: Stansted Posts: 803 |
I have similar judder, so am thinking of getting a new Inlet Valve and seeing if it fixes it for £5 quid
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31st Jan 2023 9:44pm |
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Phoenix Member Since: 16 May 2022 Location: Gone Posts: 1631 |
You do realise it's a non-trivial repair, don't you? |
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31st Jan 2023 9:50pm |
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pcourtney Member Since: 14 Jan 2020 Location: Stansted Posts: 803 |
it does look involved, how many hours would it take for a good indie shop to replace the burnt inlet vale - and if there is one gone, there may be others on the way out ( or it that unlikely )
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1st Feb 2023 11:40am |
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kokamagi Member Since: 31 May 2020 Location: Viljandi Posts: 84 |
Yes it is good idea to do the oil cooler at the same time, because top of the engine must be taken apart anyway.
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1st Feb 2023 12:16pm |
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