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‘Wooshing’ Noise from Fuel Filler Cap?
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HSELR4
 


Member Since: 16 Nov 2017
Location: Manchester
Posts: 107

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Auto Loire BlueDiscovery 4
‘Wooshing’ Noise from Fuel Filler Cap?

I keep hearing a wooshing noise from my fuel filler cap. I get the feeling it’s not sealing properly.

Upon close inspection, it does seem that the plastic / rubber ring has moved half off the cap; I’ll try to get a picture later on.

Common problem? Easy fix?
  
Post #193726117th Apr 2018 9:13 am
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Down&Dirty
 


Member Since: 17 Aug 2012
Location: Somewhere out back
Posts: 1287

England 2016 Discovery 4 3.0 SDV6 Graphite LE Auto Corris GreyDiscovery 4

Sounds like cap had it (not breathing)means tank pressuring?
 MY24 Defender 90 X-Dynamic HSE
MY18 Disco 5 HSE Santorini Black Now Gone. 
 
Post #193728317th Apr 2018 10:19 am
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HSELR4
 


Member Since: 16 Nov 2017
Location: Manchester
Posts: 107

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Auto Loire BlueDiscovery 4

I think so...

It’s under Land Rover warranty; but hope it’s a quick fix.
  
Post #193728717th Apr 2018 10:30 am
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Browny90
 


Member Since: 19 Jul 2016
Location: Ashbourne
Posts: 686

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Santorini BlackDiscovery 4

I had a similar issue on my Freelander 2. When I went to fill up, id remove the cap to a 'whooshing' noise, I did some research on Freel2.net and found there was a modified version, I believe they had a different colour cap on the inside to show the old and the modified.

I'm not sure if this is a similar issue, but I haven't heard of it on the D4.. but then I haven't looked Smile
 Disco4 MY16 SDV6 Landmark Black
Disco4 MY12 SDV6 XS Orkney Grey (Gone)
Defender 90 200tdi Completely rebuilt. 
 
Post #193730417th Apr 2018 11:02 am
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IndusD4
 


Member Since: 01 Dec 2011
Location: Sydney, NSW
Posts: 308

Australia 2016 Discovery 4 3.0 TDV6 Base 7 Seat Auto Corris GreyDiscovery 4

Mine does it frequently but not always when I take the cap off to fill it. I thought it was normal. It has never bothered me.

Ron
  
Post #193734617th Apr 2018 12:37 pm
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Browny90
 


Member Since: 19 Jul 2016
Location: Ashbourne
Posts: 686

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Santorini BlackDiscovery 4

Wit the Freelander, it did cause fuel/ engine issues.

this is the post.

http://www.freel2.com/forum/topic20985.html?highlight=fuel+cap

Quote:
We have been having various problems with our 2011 FL2, hesitation, sometimes won't start, "reduced engine performance mode" etc and despite being to the dealer several times they can't fix it or find the problem. Claim is that there are a number of 11 and 12 reg FL2s with the fault and LR don't know how to fix it. One theory was fuel starvation caused by a blocked fuel filter so that was changed recently. However, I went to put some diesel in the car today and had trouble removing the fuel filler, when it did come off there was a huge inrush of air. Is this normal? Is something blocked? So I am now wondering whether the problems could be caused by some difficulty in sucking the fuel out of the tank due to a partial vacuum. Any suggestions?

Incidentally the LR dealer told me that if a message comes up on the display then a fault code is logged, however if after the engine is restarted the fault has gone away then the code is deleted. Coming from an IT background this sounds ridiculous.
 Disco4 MY16 SDV6 Landmark Black
Disco4 MY12 SDV6 XS Orkney Grey (Gone)
Defender 90 200tdi Completely rebuilt. 
 
Post #193735717th Apr 2018 1:23 pm
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KTM Gordo
 


Member Since: 18 Jul 2017
Location: St Neots
Posts: 109

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Yulong WhiteDiscovery 4

Come to think of it, my green D4 often had an airlock type effect on the fuel filler cap. I replaced the cap as the retaining leash had snapped, and I never noticed it doing it again thereafter.

The new cap was £18 IIRC from the main dealer and not covered under warranty.
 Gordon

2016 D4 Landmark, Yulong White, SDV6, Ex-JLR Fleet
2013 D4 HSE (Gone! Sold within the forum) 
 
Post #19418632nd May 2018 4:41 pm
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