Thread: fuel tank vent??

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Originally Posted by raj4851

Hi, and thanks for the comment. Yes, it is the stock S10 tank and I'm running a Holley blue pump. I really haven't heard the "whoosh" but I just got it running in September. I'm just a little nervous that maybe I should provide for a vent, but maybe not. there were lots of cars without them. I just want to be safe.

If it were mine I'd take the plug out of the third line and extend it up to a convenient high point with a loop, leaving it open to atmosphere to vent the tank. The down side is that you might get some minor fuel fumes in a closed garage, but it shouldn't be bad. If that's wrong someone else will jump in and offer their alternative. Since it's a S10 Chassis swap another approach would be to put the evaporator (charcoal) canister back on, wire up all of the solenoids, and have it back OEM.