Positive fuel tank pressure??

Kneale Brownson knotnook at traverse.com
Sat Dec 14 07:16:51 EST 2002

Isn't there supposed to be a one-way vent in the cap to allow air in to
equalize pressure as you empty the tank through engine operation?   Maybe
you need a new cap???  You don't want fuel fumes escaping the system.

At 07:16 PM 12/13/2002 -0800, Tigran Varosyan wrote:
>Man, what is going on with my car?! 40k miles after I bought it, NOT A
>SINGLE PROBLEM, now its one thing after another.....
>Latest thing is that my gas tank is developing some pretty high pressure
>inside. I dont know what or why it is happening but when I remove the gas
>cap there is a lot of air that is coming out. I checked to see if maybe it
>was air going in, but it certainly feels like its coming out. This has never
>happened before, I mean maybe a tiny puff or something, but this is a lot of
>pressure.... I am thinking maybe to drill a tiny hole in the gas cap or
>something... Anyone have any idea what the heck is going on?
>85 4ksq

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