Help with a strange raspy whining noise

Hendo78 · Nov 13th, 2021, 20:56

Hi all

I have a Volvo XC90 Inscription 2015 with about 93,000 miles.

It has a full service history and I have had no issues of substance to date, great car.

I did a 500 mile round trip on Thursday and then on Friday when I drove the car I could hear a whining raspy noise when a I was traveling at low speeds 30mph.

I took the car on the motorway and no issues, the noise went away or at least I couldn't hear it. When I dropped down to 30mp again though the noise was present again.

The noise is present at those speeds and when I am coasting not pressing the accelerator. when I parked up I put the car in neutral and slightly put my foot on the accelerator and it was present again, the more I pressed the louder it gets to a point and then it can no longer be heard. Seems linked to accelerator but strange it is present at low speeds when I am coasting.

It remains when coasting downhill, if I move the steering wheel and like I say is present when parked in neutral with my foot slightly on the accelerator so don't think its bearings.

Does anyone have any idea on what this could be ?

I don't think the car is underpowered or at least its difficult to tell but I do feel when I take my foot of the accelerator there is a little delay in the the revs coming down, albeit that could be me overthinking it a little.

The noise is similar to when kids used to put cardboard in their tyres on bicycles, although its not overly loud, only slight.

Any help much appreciated

AlexKnopp · Nov 13th, 2021, 21:17

Hi
There are still plenty of bearings moving around when you are stationary. Such as those in your alternator or your water pump etc.
Last time I had a similar noise it was the alternator. I would lift the bonnet and expose the auxiliary belt and listen down there, you may find its coming from something down there.

Hendo78 · Nov 13th, 2021, 21:24

Thanks for that Alex I will take a look.

I am just hoping its not the turbo.

Darlo 1 · Nov 14th, 2021, 12:00

I had a strange whining noise coming from my T4 years ago, stopped when i got divorced.

MGSheff · Nov 17th, 2021, 00:55

Have you checked the tyres to see if there is some cardboard stuck in the spokes?

MGSheff · Nov 17th, 2021, 01:12

If the noise is there when you are parked up and in neutral then it will be in the engine bay and the drive transmission is in the clear. Have a look under the bonnet.

Nov 13th, 2021, 20:56	#1
Hendo78 New Member Last Online: Nov 14th, 2021 03:33 Join Date: Nov 2021 Location: Cardiff	Help with a strange raspy whining noise Hi all I have a Volvo XC90 Inscription 2015 with about 93,000 miles. It has a full service history and I have had no issues of substance to date, great car. I did a 500 mile round trip on Thursday and then on Friday when I drove the car I could hear a whining raspy noise when a I was traveling at low speeds 30mph. I took the car on the motorway and no issues, the noise went away or at least I couldn't hear it. When I dropped down to 30mp again though the noise was present again. The noise is present at those speeds and when I am coasting not pressing the accelerator. when I parked up I put the car in neutral and slightly put my foot on the accelerator and it was present again, the more I pressed the louder it gets to a point and then it can no longer be heard. Seems linked to accelerator but strange it is present at low speeds when I am coasting. It remains when coasting downhill, if I move the steering wheel and like I say is present when parked in neutral with my foot slightly on the accelerator so don't think its bearings. Does anyone have any idea on what this could be ? I don't think the car is underpowered or at least its difficult to tell but I do feel when I take my foot of the accelerator there is a little delay in the the revs coming down, albeit that could be me overthinking it a little. The noise is similar to when kids used to put cardboard in their tyres on bicycles, although its not overly loud, only slight. Any help much appreciated Last edited by Hendo78; Nov 13th, 2021 at 21:09.

Nov 13th, 2021, 21:17	#2
AlexKnopp New Member Last Online: Sep 17th, 2022 13:44 Join Date: Nov 2021 Location: Chirk	Hi There are still plenty of bearings moving around when you are stationary. Such as those in your alternator or your water pump etc. Last time I had a similar noise it was the alternator. I would lift the bonnet and expose the auxiliary belt and listen down there, you may find its coming from something down there. __________________ Just another guy with a load of tools and just enough knowledge.

Nov 14th, 2021, 12:00	#4
Darlo 1 Lunatic. Last Online: Today 22:00 Join Date: Dec 2006 Location: staffordshire	I had a strange whining noise coming from my T4 years ago, stopped when i got divorced. __________________ V40 1.9D 2004 620 miles to the tankful. 235000 miles on clock. Now sold, S60 D5 2004. I vape therefore I am.

Nov 13th, 2021, 21:24	#3
Hendo78 New Member Last Online: Nov 14th, 2021 03:33 Join Date: Nov 2021 Location: Cardiff	Thanks for that Alex I will take a look. I am just hoping its not the turbo.

Nov 17th, 2021, 00:55	#5
MGSheff Junior Member Last Online: Yesterday 23:31 Join Date: Jun 2020 Location: Sheffield	Have you checked the tyres to see if there is some cardboard stuck in the spokes?

Nov 17th, 2021, 01:12	#6
MGSheff Junior Member Last Online: Yesterday 23:31 Join Date: Jun 2020 Location: Sheffield	If the noise is there when you are parked up and in neutral then it will be in the engine bay and the drive transmission is in the clear. Have a look under the bonnet.

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