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Fuel Sending Unit

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Old Sep 14, 2009 | 09:31 AM
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From: Northern Kentucky
Car: 1991 Trans Am GTA, 2003 Grand Am GT
Engine: 350 Tune Port
Transmission: 700R4
Fuel Sending Unit

Hello,

I purchased a new fuel sending unit from Rock Auto Spectra FG20A. I installed it and jsut noticed that the assembly has 4 steel hoses to attach instead of the normal 3. I assumed it would be fuel feed, fuel return, and a vent. Does anyone have any idea what the 4th one would be for? Can I just cap it off?

Thanks!
Josh
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