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Old 06-20-2009, 05:36 PM
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gas tank

I have a RCI fuel tank which has 3 outlets.One is pick up run to fuel pump,return is capped off,and the vent which is run under the car.The question is when I enter the garage it has gas fumes coming from the vent tube.Does this line need some type of check valve or is there something I'm doing wrong?I have the vent tube capped off right but will this cause a gas problem cause of vacuum?Any help would be appreciated,thanks

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Old 06-20-2009, 05:59 PM
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You need to allow air to enter the tank to replace the volume of fuel drawn from the tank..On a factory car the tank is connected to a vapor recovery system. what I would suggest is a check valve to allow air into the tank and not allow vapors out of the tank..You may be able to adapt something from wrecking yard parts..

Dorman makes a fuel tank vent valve..should be at NAPA..

I have tried most all of it and now do what is known to work..
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Old 06-22-2009, 08:28 AM
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dorman valve

Thanks,just ordered a Dorman valve
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