Helping a friend with the above. it was driven into the garage 12 years ago, fuel stabilizer added, and parked. We've drained passenger side fuel tank and there's 12 volts to the pump but no pumping. I can blow through the fuel inlet hose to the outlet. When voltage is applied, there is a 'gulp' type sound and when the voltage is disconnected, a small quantity of gasoline comes out the outlet - as if the diaphragm sucked in when power applied and pushed out when it was switched off. Driver's side pump also is not pumping and also has voltage but we haven't done any disassembly. Searching 'fuel pump' on the Forum was interesting but no luck. Thanks.