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S60 & V60 '18> / XC60 '17> / S90 & V90 '16> / XC90 '15> General Forum for the SPA-platform 60- and 90-series models |
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High pitch engine noise under loadViews : 2972 Replies : 20Users Viewing This Thread : |
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Apr 12th, 2023, 14:34 | #1 |
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High pitch engine noise under load
Hi
On my Volvo XC90 D5 Momentum 2016 (85.000 miles on the clock) I have developed a high pitch noise from the engine area which comes on only under load/ during acceleration (at about 2500-3000 rpm) and then disappears again at higher revs. It is more pronounced uphill and when the car is fully loaded. I never seem to get it when the car is cold. It started about 9 months ago and is slowly getting worse. I originally thought it might be from the Turbo system and brought it to Volvo but they said they could not find anything wrong with it but they also said they could not hear the noise. No smoke. No increased diesel consumption. Power seems to be ok all but that I think I have lost some top end speed (around 20mph on German motorways). I have an audio file of the noise and will try to find a way to upload it. Can anybody help? Many thanks Chris |
Apr 13th, 2023, 12:41 | #2 |
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I have a similar noise that started around the same mileage on a D4 V60.
It sounds like an electrical noise (can't really describe it better) - high pitched and only under hard acceleration in higher RPM, so rarely hear it. A couple of garages have looked at it with the "we can't find it guv" response. No error codes or anything so I've ignored it for now.
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2023 V60 B3 Core with Blonde Leather. A classic Friday Afternoon car. Before: 2019 V60 D4 Inscription Manual ran to 105k miles. 2015 V70 D3 5 Cyl ran to 93k. 2010 V50 1.6D DrivE ran to 87k. |
Apr 14th, 2023, 17:38 | #3 |
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thanks neilgorin
I did ignore it for some months now. My worry is that it gets worse and I do not want to miss a slowly failing turbo. I will try to upload an audio file or place a link to google drive to share the noise and see what people think. |
Apr 14th, 2023, 20:01 | #4 |
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Have you checked for any evidence of black spot around the exhaust manifold? This screams to me you have a small leak on the gasket between the block and the manifold.
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Apr 15th, 2023, 06:50 | #5 |
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Here is the audio link as promised:
https://drive.google.com/file/d/1SV6...w?usp=drivesdk The noise is quite subtle and best heard at 5 secs and then again from 7 secs. Yes, I thought of the exhaust manifold too and cannot find any signs of leakage there. |
Apr 19th, 2023, 21:26 | #6 |
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Anybody an idea what it could be?
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Apr 20th, 2023, 07:48 | #7 |
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The clip “requires permissions from the owner”.. Try uploading to yt.
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Apr 20th, 2023, 09:11 | #8 |
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it can be PowerPulse hose, as you have D5 engine
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Apr 20th, 2023, 17:50 | #9 |
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Apr 20th, 2023, 19:52 | #10 |
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To me it sounds more like hissing.. a cracked PP hose possibly?
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V60 D3 V60 D5 RD XC60 D5 RD AWD XC40 B4 RD AWD |
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noise, turbo, xc90 |
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