Quote:
Originally Posted by Diseasel300
The fuel system does not pressurize the fuel tank. Ideally the pressure inside the tank should be the same as the surrounding atmosphere or at a very slight vacuum to keep fumes inside the evap system.
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No pressure ,or no vacumm , have it your way. But it will run poor ,and even stop , with a bad fuel cap seal.. May be i said it wrong .But if no sound from it as you lift off the filler cap ,the cap will need replcing ..