I'm sure this isn't a Metris-only problem because I occasionally had it with my last van, an E250 Ford. Way too often when I fill up, the gas starts pumping and then almost immediately shuts off again. Each attempt to restart the pump is met more or less the same way with auto-shutoff--even tho the tank is one-quarter to three-quarters empty. Pulling out the nozzle slightly or out most of the way doesn't have any effect. Rocking the van back and forth makes no difference. I thought it was just a particular station that had the back-pressure trigger set too low, but now I find it happening in multiple locations. Too often now, pumps shut off a dozen times in a row and eventually I get enough gas but never a full fill-up. Could there be a problem with my vehicle that causes this irritating tripping of the gas pump?