Ran out of gas

Cranks ok but engine will not start > It's a good possibility the fuel pump has failed - OR - there is another reason the engine stalled and now it 'cranks' ok - but - will not *start*.. Hands-on testing is required to determine exactly what the actual problem is. IF it "ran out of gas" .. The 2 gallons you added should be enough to get the engine started - IF vehicle is sitting on fairly level ground .. Can certainly try adding more fuel. Good luck!