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gas flap


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Guest
Anonymous Poster

Jan 29, 2009, 1:22 PM

Post #1 of 6 (5041 views)
gas flap Sign In

2003 chevy express van 6.0 3500

you know that little flap you see when you take off your gas cap. well I just filled up and now I see this flap is stuck open and wont close. To top this off as soon as I left the gas station the check engine light came on. I tried to pull the flap down but it just keeps popping back up. can I cover the hole with something else or is there an easy fix for this.
thanks in advance


dmac0923
Enthusiast

Jan 30, 2009, 1:57 PM

Post #2 of 6 (5031 views)
Re: gas flap Sign In

im sure someone will correct me if im wrong, but i believe that flap acts as a mini check valve and is there to prevent any fuel from traveling up the filler neck and spilling out i guess if you forgot to put your gas cap on.

probably just an environmentalist feature.

that flap on one of my cars one day just snapped off and went into the tank......no check engine light though.
__________________________________________________
2015 Jeep Grand Cherokee
2002 Ford Ranger
2004 Toyota Corolla
1969 Ford Mustang Mach 1


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jan 30, 2009, 5:41 PM

Post #3 of 6 (5027 views)
Re: gas flap Sign In

Here's a 2004 Express Van. What flap are we talking about?? There's a painted metal body panel cover and then should be a little flap inside seen only when fuel cap is removed unless there's some new idea for this. The little metal flap shouldn't matter much and I think it's just a means to help prevent back splash or perhaps a sudden burst of fuel in your face if the tank was holding pressure. The body door might be remote and not stay shut and warn you. The cap may not be tight or fit properly and also give a warning but I would guess that would trigger a general "Service Soon" type warning??

Here are two pics I found out there. What exactly are we talking about?

T








(This post was edited by Tom Greenleaf on Jan 30, 2009, 5:43 PM)


dmac0923
Enthusiast

Jan 30, 2009, 9:54 PM

Post #4 of 6 (5019 views)
Re: gas flap Sign In

i believe hes talking about that little metal door inside the fuel neck that gets pushed out of the way by the gas pump.
__________________________________________________
2015 Jeep Grand Cherokee
2002 Ford Ranger
2004 Toyota Corolla
1969 Ford Mustang Mach 1


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jan 30, 2009, 11:17 PM

Post #5 of 6 (5015 views)
Re: gas flap Sign In

I think that's what's being mentioned but can't understand the CEL unless it has a way of NOT sealing tight with gas cap back on??

T



dmac0923
Enthusiast

Jan 31, 2009, 2:39 PM

Post #6 of 6 (5008 views)
Re: gas flap Sign In

yea the CEL has me thrown a little bit too, my car never through a CEL for that flap missing. only way to tell is to get the code read.
__________________________________________________
2015 Jeep Grand Cherokee
2002 Ford Ranger
2004 Toyota Corolla
1969 Ford Mustang Mach 1






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