I'm telling you guys. There's a design weakness in the S14 (after about 15 years). Check your tanks! If it turns out that yours is cracking or leaking you really should replace it. You should be to get a new tank for ~ $360. It's
definitely not a fun repair.
I got my local dealership to beat Courtesy Nissan's price, and got a new tank for $355. Keep in mind that a new tank is
only a tank in the parts catalog. You'll have to swap over everything else from your old tank or buy new parts. (Read: You'll need the gasket, cap, and screw top, along with the brackets for the fuel pump and fuel level sender, and then all of the hoses and clamps that run around the outside of the tank.)
If you do decide to replace it, drain as much fuel as you can out of the tank. It'll make it a lot lighter, and your garage also won't smell like gasoline for 3 weeks after you spill it all over the floor.
Just for reference, here's what the crack in my stock exhaust looked like. This is the second, built-in resonator, on the inlet side.
