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C30 / S40 & V50 '04-'12 / C70 '06-'13 General Forum for the P1-platform C30 / S40 / V50 / C70 models |
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Presure release when opening fuel capViews : 810 Replies : 3Users Viewing This Thread : |
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Feb 23rd, 2015, 12:47 | #1 |
Junior Member
Last Online: Sep 11th, 2022 15:55
Join Date: Aug 2011
Location: Chertsey
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Presure release when opening fuel cap
I have just experienced something with my V50 2.0d MY2008, which hasn't happened before.
I went to fill up with diesel, when I undid the fuel cap there was a whoosh of pressurised air from the tank, the engine wasn't running, is this something to worry about? I have had the car a few years now and have never had this happen before, could this be a sign of something starting to go wrong? |
Feb 23rd, 2015, 14:18 | #2 |
Master Member
Last Online: Jan 7th, 2024 14:02
Join Date: May 2014
Location: Glasgow
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Its normal to happen....
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2009 V70 R-Design 2.0D SE Sport 2007 XC90 D5 SE Lux 2006 XC90 V8 Executive |
Feb 23rd, 2015, 14:55 | #3 |
Premier Member
Last Online: Sep 14th, 2021 17:03
Join Date: Feb 2009
Location: Market Harborough
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Mine does it a lot, more after just a short run to the garage. Sometimes it's a huge draw of air. The tank runs a slight negative pressure so that the fuel 'fumes' can be recovered to a charcoal canister in the engine bay and neutralised.
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2005 S40 T5 SE - Manual. Bilstein B4's. (For Sale) 2010 Citroen C4 1.6 HDi (bizarre Gearbox model). 2010 Renault Twingo (refreshingly simple) 2018 Infiniti Q30 1.6T Business Executive (what's this button do?) |
Feb 23rd, 2015, 22:39 | #4 |
woody
Last Online: Mar 1st, 2015 23:07
Join Date: Aug 2012
Location: poole
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this used to happen when the air hole in the fuel cap was blocked , just put a straight pin or piece of wire into it to clear it and it should do the trick .
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Tags |
fuel, pressure, v50 2.0d |
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