Hydraulic Help!!!!

i need help! bad! lol, i got 4 pumps, and when i just put 2 batteries to each pump to raise each corner of the car, the back all came up fine, than the front left came up fine, than the front right didnt do shit, the pump didnt even sound like it turned. are there any suggestions or something i can do? i need help asap, so i can sell it.