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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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Sounds after engine run?Views : 882 Replies : 6Users Viewing This Thread : |
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Aug 12th, 2020, 06:57 | #1 |
Goldwing Rider
Last Online: Oct 24th, 2023 06:17
Join Date: Jan 2006
Location: Lincolnshire
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Sounds after engine run?
After a run, and turning off the engine, in my newly aquired V70 D3, there is a whirring/buzzing sound from the engine area and a sound like "gas" being expelled. What is this, and is this normal, please?
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2013 Volvo V70 D3 2004 Volvo V70 D5 -MOT Now Nov. 2020 (yeah !)- SOLD 1993 Honda Goldwing GL1500SE(P) ** Sadly SOLD ** Even more Radio Controlled Model Aeroplanes |
Aug 12th, 2020, 18:11 | #2 |
Member
Last Online: Apr 4th, 2024 19:44
Join Date: Jan 2017
Location: Kalix
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Same with my 2.4D, no idea what it is.
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Aug 12th, 2020, 20:18 | #3 |
New Member
Last Online: Aug 1st, 2023 14:10
Join Date: Jun 2020
Location: York
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My 2011 D3 also has noises after turning off. I'd assumed it was to do with flowing coolant and oil to keep temps down when stopped. Turbo timer type thing. Either that or some relays doing something.
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Aug 16th, 2020, 21:20 | #4 |
New Member
Last Online: Sep 2nd, 2022 19:20
Join Date: Oct 2016
Location: wigan
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My 2013 D3 also makes it, seems to come from a valve? located rear top right of the engine, Can feel it vibrate when making noise.
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Aug 16th, 2020, 22:11 | #5 |
Bungling Amateur
Last Online: Yesterday 20:51
Join Date: Aug 2014
Location: Beverley, East Yorks
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There's a number of valves that are operated after engine shut off which are controlled on a pulse-width modulation bases (i.e. short sharp pulses rather than variable voltage).
The main ones are the fuel pressure regulator, and the anti-shudder valve (if fitted). It's normal....
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2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135 |
Sep 7th, 2020, 20:16 | #6 |
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Last Online: Apr 11th, 2024 18:10
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Location: Norway
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2013 V70 D3 with same symptoms, changed vacuum valve part nr: 31293964 and that fixed the problem. The faulty valve leaked air into the vacuum system, when the buzzing sound stopped, i noticed that the brake pedal was "stiff", because there was no vacuum left in the system.
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Jan 16th, 2021, 15:22 | #7 |
Newbie
Last Online: Yesterday 22:21
Join Date: Feb 2015
Location: Newtown
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Swirl flap motor calibrating?
I'm wondering if the noise you're hearing is the swirl flap motor calibrating. It does this about every 5 starts on my Euro4 D5 and makes short bursts of whirring amd clicking sounds. This is perfectly normal
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