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S80 '06-'16 / V70 & XC70 '07-'16 General Forum for the P3-platform S80 and 70-series models |
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High pitched whine developed.Views : 821 Replies : 8Users Viewing This Thread : |
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Nov 11th, 2019, 11:21 | #1 |
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High pitched whine developed.
Can anyone suggest what this could be. I've developed a faint, but noticeable whine, high pitched and engine related as it increases with speed, even in neutral. It sounds like the drivers side. More noticeable when cold. Any ideas?
Thanks
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Nov 11th, 2019, 12:03 | #2 |
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Alternator? Distressed passenger?? J.
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Nov 11th, 2019, 21:41 | #3 |
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I've checked with the passengers and they're happy! I guess it could be the alternator, maybe I have to wait until it gets louder.
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Nov 11th, 2019, 22:14 | #4 | |
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Quote:
If one of them let's go, you stand a good chance of derailing a belt and trashing your engine. If you think that sounds unlikely or dramatic, there are plenty of examples over the years just on this forum.
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Nov 12th, 2019, 11:14 | #5 | |
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Quote:
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Nov 12th, 2019, 13:13 | #6 |
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Whining Noise
Hi Phil,
Don't wish to depress you but have a read through this link. https://drivinglife.net/car-making-w...-accelerating/ I had my car described as having turbo whine so it could even be that. Best wishes Fred |
Nov 12th, 2019, 14:12 | #7 | |
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It could even be argued that low mileage, short trip usage is more harsh on the freewheel mechanism on an alternator pulley so always better to be certain with anything in that area. The car can be started with the auxiliary belt off so if the noise disappears that narrows things down dramatically.
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Nov 12th, 2019, 15:05 | #8 |
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One thing to check: Open bonnet with engine running and carefully unscrew the power steering resevoir cap. Are there bubbles being created? If so you have air getting into the power steering system. A few Volvos have had this. Fix was to replace the resevoir and feeder pipe. This created a similar noise on mine until fixed.
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Nov 12th, 2019, 19:48 | #9 |
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Thanks all for the suggestions, I'll check some of the things suggested and if I find nothing obvious I'll book it in with my trusted mechanic. I'll post again when I have an update.
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