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2000 V70R Whining/Buzzing Noise in Engine Bay

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Multiskilled
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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay

Post by Multiskilled » Sun Apr 28, 2019 10:24 am

It sounds like the noise I had from how you describe it , check out my old post ( strange noise) I tried everything and never could really pin point it , but after changing the oil filter I haven't heard it since approx 2 months ago



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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay

Post by Wasamee » Sun Apr 28, 2019 1:06 pm

It's more like a buzzing sound exactly how it sounds in the video. But I haven't checked for vacuum leaks



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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay

Post by bmdubya1198 » Sun Apr 28, 2019 4:03 pm

Mine almost sounds like a "spraying" and it's intermittent. It's really strange. Almost like the sound of a fuel pump running, but it breaks up, it's on and off. It's definitely electronic.


1998 V70 GLT Black/Beige 191k
2000 V70R Venetian Red/Charcoal M56 Swapped 188k
2001 S60 2.4T Black/Black 230k
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1998 S90- Silver/Gray 207k
1995 850 collection of parts... crushed... still have parts, PM if interested!
1988 744 Turbo M46 Beige Metallic/Beige 188k- Still kicking myself for getting rid of this one

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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay

Post by rguzz » Mon Apr 29, 2019 3:31 pm

Headlight motor? Both of mine buzzed, disconnected harness, resolved. Never would have guessed until someone suggested.



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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay

Post by bmdubya1198 » Mon Apr 29, 2019 3:34 pm

rguzz wrote:
Mon Apr 29, 2019 3:31 pm
Headlight motor? Both of mine buzzed, disconnected harness, resolved. Never would have guessed until someone suggested.
Huh... I'm gonna try that. It's right around that area that I'm hearing it.


1998 V70 GLT Black/Beige 191k
2000 V70R Venetian Red/Charcoal M56 Swapped 188k
2001 S60 2.4T Black/Black 230k
2007 XC90 V8 AWD Sport Titanium Grey/Black 151k
1998 S90- Silver/Gray 207k
1995 850 collection of parts... crushed... still have parts, PM if interested!
1988 744 Turbo M46 Beige Metallic/Beige 188k- Still kicking myself for getting rid of this one

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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay

Post by rguzz » Mon Apr 29, 2019 6:42 pm

My passenger motor went first, a few months later drivers side. Peering in to engine compartment, to the left of the radiator (as you know). Worth considering as it's an easy fix.



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WhatAmIDoing
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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay

Post by WhatAmIDoing » Mon Apr 29, 2019 8:19 pm

I agree with the headlight wiper motor theory. Use to have a strange buzzing sound in the engine bay when the key was on. Motors were intermittently working. Unplugged them both and never heard the noise again.


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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay

Post by abscate » Mon Apr 29, 2019 9:01 pm

Maybe you ran over a Vespa and it’s stuck underneath.


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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay

Post by Wasamee » Fri May 10, 2019 4:17 pm

So, I recently took it to Volvo to have an air bag message reset due to my battery completely draining over the winter. Tech told me he found a few "ghost" errors that he cleared also. It's been 2 days and I haven't heard the sound since. Hopefully it stays that way. I usually hear the sound all day everyday.



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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay

Post by bmdubya1198 » Fri May 10, 2019 6:39 pm

Wasamee wrote:
Fri May 10, 2019 4:17 pm
So, I recently took it to Volvo to have an air bag message reset due to my battery completely draining over the winter. Tech told me he found a few "ghost" errors that he cleared also. It's been 2 days and I haven't heard the sound since. Hopefully it stays that way. I usually hear the sound all day everyday.
Hmm, that’s interesting. Keep us up to date!


1998 V70 GLT Black/Beige 191k
2000 V70R Venetian Red/Charcoal M56 Swapped 188k
2001 S60 2.4T Black/Black 230k
2007 XC90 V8 AWD Sport Titanium Grey/Black 151k
1998 S90- Silver/Gray 207k
1995 850 collection of parts... crushed... still have parts, PM if interested!
1988 744 Turbo M46 Beige Metallic/Beige 188k- Still kicking myself for getting rid of this one

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