I was adjusting the belt tension and power steering pulley to try to stop the belt from squeaking, and I started the jeep to test it, and it sounded weird when I started it. Then the engine sounded like it was dying, and the exhaust was coming out in bursts. Then the engine died. I tried starting it again, and it also died again. At first, I thought I ran out of gas, and put 2-3 more gallons in. However, it starts up halfway and immediately shuts of. I keep trying to start it while pressing the pedal, but it still doesn't start.