When u fill up

Carbix · Post by **Carbix** » Tue Jan 09, 2007 6:19 am

When i fill up my gas i get a burst of pressure from my gas cap every time i take it off... is this normal?

DTSJR · Post by **DTSJR** » Tue Jan 09, 2007 1:55 pm

Yes, thats normal. Subaru uses pressurized fuel tanks.

Manarius · Post by **Manarius** » Tue Jan 09, 2007 3:49 pm

It's not really a burst of pressure so much as it's a vacuum. When you release the cap, air is rushing into the tank to replace the gas that was removed when you were driving.

Threshld1 · Post by **Threshld1** » Tue Jan 09, 2007 4:42 pm

Isnt that what the tank vent is for that goes to the canister?

n2x4 · Post by **n2x4** » Tue Jan 09, 2007 6:29 pm

My car does it, I was under the impression a bad purge control solenoid had something to do with it. Or gas cap. I don't remember.
But yah, my subaru is the only car I've had that acts like it's been starved every time I open the gas cap.

Manarius · Post by **Manarius** » Wed Jan 10, 2007 12:32 am

Threshld1 wrote:Isnt that what the tank vent is for that goes to the canister?

I would assume that would be for the gas fumes themselves, not the air that flows into the tank when one opens the gas cap.

TheSubaruJunkie · Post by **TheSubaruJunkie** » Wed Jan 10, 2007 6:27 am

I only get that when i run my tank dry.

-Brian

Carbix · Post by **Carbix** » Wed Jan 10, 2007 7:48 am

i have never ran my tank dry thats a big no no

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When u fill up

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When u fill up