How do I stop pressure building up in my fuel tank? - Renault Forums :: Independent Renault forum

LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 14th October 2011 Thread Starter
Junior Member
Join Date: Jun 2010
Posts: 4
Nominated 0 Times in 0 Posts
TOTW/F/M Award(s): 0
Thanks: 1
Thanked 0 Times in 0 Posts
How do I stop pressure building up in my fuel tank?

Pressure keeps building up in my fuel tank and then I get a high pitched whistling noise at random intervals - how do I fix stop that occurring? Right now if I stick a twig in the filler cap, the problem does not occur but that is not a great solution ..... THANKS1
robbyhotline is offline  
  5 Lastest Threads by robbyhotline
Thread Forum Last Poster Replies Views Last Post
How do I stop pressure building up in my fuel... Cars & motoring mord 2 926 14th October 2011 06:59 PM
Intermittent high pitched noise when car is parked Electronics robbyhotline 5 2216 31st August 2011 05:58 PM
Sponsored Links
post #2 of 3 (permalink) Old 14th October 2011
S.M.A.R.T.(y) Pants
VelSatisfied's Avatar
Join Date: Jul 2006
Posts: 16,936
Nominated 11 Times in 37 Posts
Nominated TOTW/F/M Award(s): 17
Thanks: 4,549
Thanked 2,467 Times in 1,851 Posts
Re: How do I stop pressure building up in my fuel tank?

I'm a bit unsure when in colder weather, pressure is increasing. Normally as fuel is used, and if there is some form of blocked overflow or obstruction on the filler cap, then pressure reduces as a partial vacuum is created. (this would still account for the noise)

It sounds like the overflow is blocked, and could do with some attention.



This job should never be complete - the day I think I've done it all, is the day I resign.

S.M.A.R.T. Technician
Currently in VelSatisfied's garage:
2005 FIAT Ducato 2.8JTD LWB Gran Volume, 2000 Kawasaki ZZR 1100 D7 'fullpower' in black + full GIVI & KAPPA luggage, 2007 MB R-Class 320 CDi Sport LWB uprated by Brabus to 300Bhp don't know if there's a 155mph limiter - will be fun finding out! 2004 Mercedes Vaneo 1.7 CDi Ambiente 7-seater
VelSatisfied is offline  
post #3 of 3 (permalink) Old 15th October 2011
Platinum member
mord's Avatar
Join Date: Jun 2009
Posts: 5,250
Nominated 3 Times in 11 Posts
Nominated TOTW/F/M Award(s): 4
Thanks: 47
Thanked 514 Times in 490 Posts
Re: How do I stop pressure building up in my fuel tank?

looks like the tank is going to need to be taken off, though try flushing the feeder and return pipes out first before doing so.
there are a number of pipes hidden on the top of the tank, one of those is involved in pressure relief.
as usual try to get the car in for service with the lowest amount of fuel in it. (it saves on having to pump 20+Litres of fuel to cans before they drop it off the car.
A new set of plastic/rubber pipework for the top of the tank is about 50 or so from dealerships.
Currently in mord's garage:
The CreditCard Holes sooo DEEEEP NASA have put up warning signs about a black hole on the Driveway: update, the driveway and home have fallen in...
mord is offline  

building , fuel , pressure , stop , tank

Quick Reply

Register Now

In order to be able to post messages on the Renault Forums :: Independent Renault forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome