I'm familiar with that noise, but I don't think that's what it is. It's similar, but the noise goes up and down, unlike the ETM noise. I can still hear the ETM though, so I'm pretty sure it's not the same noise.
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2000 V70R Whining/Buzzing Noise in Engine Bay
- bmdubya1198
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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay
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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay
It sounds like bearing clatter to me. I hear metal rubbing. It sounds very similar to the noises my belt tensioners made before my timing belt water pump debacle. But this is all speculation from your video! I'd pull the t/belt cover and see if it gets louder.
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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay
No, its a high pitched, like 1kHz buzz.
Im thinking alternator or possibly CVVT hub wear noise.
Im thinking alternator or possibly CVVT hub wear noise.
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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay
Yeah, it's definitely not mechanical like a bearing.
I listened to it this morning, thinking it may be the ETM as I listened in that area, but I definitely hear it most around the alternator area. Maybe it's the alternator, who knows. I'll take a closer listen this afternoon. I wouldn't be surprised if it was coming from the A/C compressor either, there's a wire nut on one of those wires from a previous owner. No idea why it's like that.
I won't 100% rule out the CVVT hub either, that makes a grinding noise on startup sometimes. However the buzz seems to be ahead of that area.
I listened to it this morning, thinking it may be the ETM as I listened in that area, but I definitely hear it most around the alternator area. Maybe it's the alternator, who knows. I'll take a closer listen this afternoon. I wouldn't be surprised if it was coming from the A/C compressor either, there's a wire nut on one of those wires from a previous owner. No idea why it's like that.
I won't 100% rule out the CVVT hub either, that makes a grinding noise on startup sometimes. However the buzz seems to be ahead of that area.
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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay
Have you made any progress with this issue? I have a 2000 S80 T6 that makes that exact same sound.
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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay
That’s interesting. I actually ended up rebuilding my original ETM with the Sacer contactless TPS, but the noise is still there. I don’t think it’s the ETM.
It sounds like it’s closer to the belts than the throttle, but it’s very hard to tell.
It sounds like it’s closer to the belts than the throttle, but it’s very hard to tell.
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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay
Have you tried taking the serpentine belt off, starting it up to see if the noise stops?bmdubya1198 wrote: ↑Sat Apr 27, 2019 8:25 pm It sounds like it’s closer to the belts than the throttle, but it’s very hard to tell.
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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay
I have not, but I’ll give that a try.RickHaleParker wrote: ↑Sat Apr 27, 2019 8:47 pm Have you tried taking the serpentine belt off, starting it up to see if the noise stops?
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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay
It seems to be coming from the back of the engine near the passenger side.
- bmdubya1198
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Re: 2000 V70R Whining/Buzzing Noise in Engine Bay
Have you checked for any vacuum leaks back there? Sometimes that can cause a whistling noise.
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