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psbarham
01-02-2006, 09:42 PM
has anyone else noticed the amount of pressure that is released when you remove the fuel filler cap ? or is it just mine ?

SGHOM
01-02-2006, 09:44 PM
has anyone else noticed the amount of pressure that is released when you remove the fuel filler cap ? ?

It will do when it's empty !! /pan /pan :joker:

ANTHONY
01-02-2006, 09:45 PM
mine is the same

Nick VR4
01-02-2006, 09:46 PM
has anyone else noticed the amount of pressure that is released when you remove the fuel filler cap ? or is it just mine ?

I get the same a big WHOOSH

Most newer cars dont have a overfill pipe the tank is pressurised

psbarham
01-02-2006, 09:47 PM
It will do when it's empty !! /pan /pan :joker:
i think you are confused with vacuum , i'm on about positive pressure

SGHOM
01-02-2006, 09:48 PM
i think you are confused with vacuum , i'm on about positive pressure

me... confused ?? never !! :rolleyes4 :embarasse :embarasse /help

ANTHONY
01-02-2006, 10:01 PM
i think you are confused with vacuum , i'm on about positive pressure i think del is also on about the pressure............the pressure to keep filling up a VR4 tank/pan /pan /pan /pan

I-S
01-02-2006, 11:15 PM
Mine is in vacuum when I fill up... undo the cap and there's a "pssscccchhhh" as the air flows into the tank. I'm sure positive pressure isn't good...

jakester
01-02-2006, 11:51 PM
mine dosn't whooosh, ever, but, then again, I don't have to screw mine off. It has a spring loaded little flap in the middle of the cap....just push the pump nozzle in and thats it :)

Wodjno
02-02-2006, 12:04 AM
has anyone else noticed the amount of pressure that is released when you remove the fuel filler cap ? or is it just mine ?

No :inquisiti You can't claim it as a "DUMP VALVE" /pan


Get a real car :chugchug: /Steeringw

Kieran
02-02-2006, 12:09 AM
Mine is in vacuum when I fill up... undo the cap and there's a "pssscccchhhh" as the air flows into the tank. I'm sure positive pressure isn't good...

Same here - all my Galants have been like it. Thought there would be an overflow pipe to equalise pressure - surely the fuel pump will have to work harder to draw against vacuum?

I-S
02-02-2006, 09:55 AM
Well, the vacuum doesn't seem to vary whether I've used half a tank or 95% of the tank. I guess there's a valve that lets it get to a certain vacuum level (safety reason?) but then any additional pressure causes the valve to let some air flow. Or I could be wrong...

psbarham
02-02-2006, 08:43 PM
Get a real car :chugchug: /Steeringw
After you mate :smug:

Wodjno
02-02-2006, 09:52 PM
After you mate :smug:

Your spelling and gramma is terrible Paul
:inquisiti

I'll put it right for you. /yes


"I'm afters yours mate" /Hmmm

Thats what friends are for :thumbsup:

Kieran
02-02-2006, 10:23 PM
"I'm afters yours mate" /Hmmm

Hmmm..... Someone pass Glenn the book on how to think faster than you can type.... :joker: