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|Fuel Cap Included:||No|
|Fuel Type Compatibility:||Gas|
|Vent 1 Inside Diameter:||0.63|
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Q:what is the smaller tube on the side used for and what size hose goes on that tube...if that hose is disconnected will this gas gas to leak during refueling
A:The smaller tube on the side of the Spectra Premium Filler Neck (Part No. FN582) is an Evaporator vent hose with 3/4" diameter. If liquid gasoline reaches the evaporation hose inlet in the filler neck, either through overfilling or the expansion of the gasoline on a hot day, then liquid gasoline can enter the evaporative system and stay there. This prevents the carburetor from sucking air into that vacuum port, which in turn can cause your vehicle to be hard to start. It can also cause it to idle roughly or stall altogether, depending on exactly how little air is making it through that vacuum line and into the carburetor. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto store and one of our representatives will gladly assist you with any questions or concerns you may have.