3S-GTE JDM 2nd Gen Turbo Engine Fuel tank pressure [Archive] - Toyota MR2 Message Board

3S-GTE JDM 2nd Gen Turbo Engine, tank, fuel, pressure, hear, uncommon, test, cheapest, normal, thing, guess, leaks, rush, happened, negative

You know when you take off your fuel cap and you hear the rush of air go into your tank because there is a negative pressure in your fuel tank. That has never happened to me on my MR2. Is that normal? If not how can I pressure test my tank for leaks. I guess the cheapest thing to try is get a new fuel cap. I hear it