![]() | Home > Maintenance & Mods (L322) > 4.4 tdv8 high pressure pump noise |
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kevinp Member Since: 28 Sep 2019 Location: Telford Posts: 1268 ![]() ![]() ![]() |
I've often wondered that on mine. I think it's very noisey, clicky, ticky if you know what I mean. |
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JNC Member Since: 23 Feb 2020 Location: UK Posts: 293 ![]() ![]() ![]() |
Do you get any noise/vibration around 2500?
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kevinp Member Since: 28 Sep 2019 Location: Telford Posts: 1268 ![]() ![]() ![]() |
No mate I don't. Bare in mind the second turbo usually kicks in at 2500rpm. |
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JNC Member Since: 23 Feb 2020 Location: UK Posts: 293 ![]() ![]() ![]() |
Bumping this. Would anyone mind recording the noise of their HPFP through the rev range?
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JNC Member Since: 23 Feb 2020 Location: UK Posts: 293 ![]() ![]() ![]() |
To add to this;
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Siftah Member Since: 11 Jun 2018 Location: Barcelona Posts: 347 ![]() ![]() ![]() |
Not sure how much use this will be, but I recorded this the other day as I wasn't sure whether was a noise at idle or not:
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JNC Member Since: 23 Feb 2020 Location: UK Posts: 293 ![]() ![]() ![]() |
Bit of back story to this.
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Sonearly Member Since: 18 Sep 2020 Location: Northants Posts: 218 ![]() ![]() ![]() |
I also suffer from the irritation of the ticking and clicking. Will also record tomorrow at both idle and faster. I do get an element of vibration but will confirm at what revs again tomorrow. My fan does wobble a bit when not engaged but runs true when engaged, is this normal ?
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Siftah Member Since: 11 Jun 2018 Location: Barcelona Posts: 347 ![]() ![]() ![]() |
I think it'd be a great resource for the forum if we had a library of noises/videos like this, what sounds normal for each engine and what doesn't, I'm sure it'd help when diagnosing problems.
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JNC Member Since: 23 Feb 2020 Location: UK Posts: 293 ![]() ![]() ![]() |
I will get a recording of mine tomorrow.
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Iamhim Member Since: 19 Nov 2020 Location: Atlanta Posts: 1 ![]() ![]() |
If you have vibrations around 2500 check front drive shaft. Mines did that then eventually broke🥴 |
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kevinp Member Since: 28 Sep 2019 Location: Telford Posts: 1268 ![]() ![]() ![]() |
JNC, I did a cold start the other day and while looking under the bonnet everything was quietish. Then after about 10 minutes of idling the pump went really loud. Do you think the fuel cooler has a valve on it that suddenly opens and the pump has to start pushing fuel through it and that could be the noise? Clutching at straws here. |
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JNC Member Since: 23 Feb 2020 Location: UK Posts: 293 ![]() ![]() ![]() |
I took it for a drive this morning. It is definitely quieter. There is still vibration at around 2500. But no noise as previous.
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kevinp Member Since: 28 Sep 2019 Location: Telford Posts: 1268 ![]() ![]() ![]() |
Vibration can only be caused by something spinning or wobbling. Have you checked all the pulleys are running straight? Do the drive belts run smooth? I've heard the crankshaft pulley can fail. Look to see if it wobbles at all. |
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