Pressure in gas tank - Maintenance and Repair Forum

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Pressure in gas tank
Tuesday, April 21, 2015 3:39 PM
is anyone else notice a large amount of pressure relief at the pump? i twist my gas cap and bunch of air hisses from my tank. I dont have a charcoal canister cause it got smashed in a accident. i thought about drilling a hole through the cap. Good idea or no?

Re: Pressure in gas tank
Tuesday, April 21, 2015 6:08 PM
You need a charcoal canister to create a vacuum in the tank. Without it preasure builds. If you drill a hole in the cap fumes will come out. You don't want fresh air to be able to enter the tank as a spark can cause it to explode.




On the inside my car looks like a fighter jet.
Re: Pressure in gas tank
Tuesday, April 21, 2015 7:28 PM
Rob Dotterer wrote:You need a charcoal canister to create a vacuum in the tank. Without it preasure builds. If you drill a hole in the cap fumes will come out. You don't want fresh air to be able to enter the tank as a spark can cause it to explode.

Makes since thanks
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