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Strange vacuum cleaner noise when cold outside |
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Bgmick 
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Joined: 23 Jun 2018 Location: Scotland Status: Offline Points: 84 |
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 Topic: Strange vacuum cleaner noise when cold outsidePosted: 30 Aug 2018 at 7:24am |
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Good morning all
 Bit of a strange one , now the mornings are getting cold 7 degrees here I have noticed if I rev my car even stationary after a 5 min warm up I can hear a noise Luke a quiet vacuum cleaner. The noise goes away when the car is warm. The turbo pulls like it should and no extra smoke etc. I'm just wondering if this is like a built in technology to by pass the turbo when starting from cold or a secondary air injection set up etc ? When starting the car on a warm day I don't get it , have heard it a couple of random cold days. The noise isn't a high pitched siren etc more like there is a small quiet vacuum cleaner. |
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Bgmick
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Joined: 23 Jun 2018 Location: Scotland Status: Offline Points: 84 |
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Posted: 30 Aug 2018 at 7:29am |
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Car runs great no roughness or increased fuel consumption
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Bgmick
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Joined: 23 Jun 2018 Location: Scotland Status: Offline Points: 84 |
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Posted: 30 Aug 2018 at 6:17pm |
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Should clarify it's not a sucking sound it's like the motor sound a vacuum makes
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chrisw99
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Joined: 16 Jan 2013 Location: Cheshire Status: Offline Points: 971 |
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Posted: 31 Aug 2018 at 9:12am |
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Try eliminating some things. When it's doing it, turn off completely the AC and climate systems, that will rule out the compressor motor, the fans, etc.
If the noise does stop, it's something related to that. |
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QQ3: 2014 1.2 dig-T ntec+ gunmetal grey
QQ2: 2013 CVT 360 silver QQ1: 2009 1.5dci n-tec fired iron |
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pandjh
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Joined: 17 Mar 2010 Location: South-East Status: Offline Points: 532 |
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Posted: 31 Aug 2018 at 12:13pm |
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Wiper fluid pump stuck on?
LED headlight bulb fans? Edited by pandjh - 31 Aug 2018 at 12:15pm |
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2015 QQ 1.2 Dig-T N-Tec+, Black
Previously 2009 QQ 1.5dCi Acenta, Black |
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Bgmick
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Joined: 23 Jun 2018 Location: Scotland Status: Offline Points: 84 |
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Posted: 01 Sep 2018 at 5:33pm |
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Nah windscreen pump all good , don't have any led headlamps and turning aircon off and fans doesn't change it.
Was just hoping someone would have said they all do it to a degree and it's some kind of noise due to some fancy thermal dynamics type thing to speed up warming the engine Still hoping lol to be fair I wouldn't have even noticed if I hadn't had the stereo off |
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chrisw99
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Joined: 16 Jan 2013 Location: Cheshire Status: Offline Points: 971 |
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Posted: 03 Sep 2018 at 9:42am |
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Is the noise loud enough to record on a quick video you could post here then we can have a listen?
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QQ3: 2014 1.2 dig-T ntec+ gunmetal grey
QQ2: 2013 CVT 360 silver QQ1: 2009 1.5dci n-tec fired iron |
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Bgmick
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Joined: 23 Jun 2018 Location: Scotland Status: Offline Points: 84 |
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Posted: 03 Sep 2018 at 10:47am |
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Unfortunately not a microphone won't pic it up I'd imagine anybody else driving it wouldn't notice ...... I only heard it with stereo being off one morning but now can't stop listening for it lol
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