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otter-spotter



Member Since: 11 Feb 2013
Location: Scotland
Posts: 37
Scotland 
Hissing noise when I take fuel filler cap off
Sorry if this has been covered - nothing came up on my searches..

I've a 2012 110 USW. When I filled it up yesterday there was a noticeable hissing noise as, I guess, there must have been a vacuum in the tank.

I usually fill up when the tank gets to half but this time I had used 3/4 of the tank. I will take the cap off again to check when the I have used 1/4 of the tank as I'm slightly concerned that too strong a vacuum could damage the tank.

So, my question is. Is this likely to be a problem with a vent on the tank or a vent on the cap itself? Still under warranty so no big deal, but knowledge is power if I need to get this sorted.

Any advice gratefully received! 300 TDi 110 CSW
Post #303362 30th Jan 2014 11:23am
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NoDo$h



Member Since: 18 Aug 2007
Location: Buried in deer guts in Dorset
Posts: 972
England 
breather pipe will be blocked or more likely kinked. Well documented problem!

http://www.defender2.net/forum/topic22296.html?highlight=breather 

54 Freelander modded for mud
2008 D3 SE
2010 90 XS SW
1978 88 Series 3 undergoing surgery with a new owner
2007 90 County Truck Cab - gone
2006 D3 SE - gone
2004 Freelander Sport - gay
1999 Disco V8 ES rotted to bits
Post #303378 30th Jan 2014 11:52am
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Macpaul



Member Since: 25 Mar 2013
Location: SW Surrey
Posts: 439
United Kingdom 2013 Defender 110 Puma 2.2 USW Loire Blue
I don't know if they are the same but I had the same problem on my Td5.

Turned out to be the tank vent pipe at the back of the rear nearside wheelarch (vertical pipe with a u-bend in it clipped to the chassis leg) had come adrift from its mounting and had fallen onto the exhaust pipe and sealed itself.

As I say, I don't know if Pumas have them but easy to look. 2003 Td5 110 Hardtop
Now a 2013 110 USW too.
Post #303384 30th Jan 2014 12:04pm
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Kitoper



Member Since: 07 Dec 2012
Location: Geneva
Posts: 204
Switzerland 
Ericvv experience and comments on page 4 of the above mentioned thread are pertinent to what you are experiencing.
Post #303396 30th Jan 2014 12:32pm
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Laurie



Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897
England 2005 Defender 90 Td5 XS CSW Bonatti Grey
I ended up with a collapsed fueltank on my RRC once. 
Post #303399 30th Jan 2014 12:36pm
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otter-spotter



Member Since: 11 Feb 2013
Location: Scotland
Posts: 37
Scotland 
Thanks all

I've a long drive on Saturday - I'll keep an eye on it and get it to the dealer next week 300 TDi 110 CSW
Post #303415 30th Jan 2014 1:22pm
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