ORIGINAL: JohnW
If it makes noise, but doesn't pump fuel, the coupler between the motor and pump might be spinning on the shaft. Open the pump to verify. I had one die this way in about 5 minutes. I soldered a solid shaft (brass tubing) between the motor and pump and it worked for years pumping around 20-30 gallons a year.
same thing happened to me I sent it back, and it was replaced for being defective, still using the second pump works great,if this one breaks its worth it to me to buy another one, and not have to crank all that fuel around, 14oz tanks will wear you out