Blazer Forum - Chevy Blazer Forums - gas tank pressure???????

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- - gas tank pressure??????? (https://blazerforum.com/forum/engine-transmission-35/gas-tank-pressure-15819/)

chevcamls1

12-31-2007 01:41 PM

gas tank pressure???????

am i supposes to have pressure inside the gas tank? cause my truck never has that pressure when u open the gas cap

rriddle3

12-31-2007 02:06 PM

RE: gas tank pressure???????

It's not necessarily noticeable when you open the gas cap.

chevcamls1

12-31-2007 02:59 PM

RE: gas tank pressure???????

i have fumes coming from the top of the tank am lowering the tank tomorrow to check for leaks

swartlkk

12-31-2007 03:52 PM

RE: gas tank pressure???????

The tank is supposed to be under vacuum as part of the evap emissions control system.

chevcamls1

12-31-2007 04:10 PM

RE: gas tank pressure???????

so what should i look for? itsmell really bad under the car

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