I would start by having you mechanic check the purge system to make sure
it's working.


"Geoff Glave" > wrote in message
news:eXNne.30386$on1.19575@clgrps13...
> Hey Everyone,
>
> I've got an '89 VW Cabriolet. Over the past few months, when it's been
> warm
> and I've been driving for a while there's been a strong scent of gas back
> by
> the tank. Of course it's never reproducible at the mechanic.
>
> Also of late, when I take the gas cap off there has been a strong whoosh
> as
> vapours exhaust from the tank, almost as if the tank is over-pressured.
> (This never happens in my Nissan pickup).
>
> Today, I filled the tank after driving for about an hour in rush hour
> stop-and-go traffic. The tank was still two-thirds full and the WHOOSH
> and
> resultant venting was so strong when I removed the gas cap that fuel
> literally sprayed out of filler neck/opening and down the side of the car
> (and all over my pants!). Probably a good half-liter or so of fuel.
>
> Seems to me like there's a strong vapour-pressure building up in the tank.
> Might also explain the scent of fuel when it's warm.
>
> Any thoughts as to what could be causing this and what I should be doing
> to
> correct it?
>
> Thanks in advance.
>
> Cheers,
> Geoff Glave
> Vancouver, Canada
>
>
>