Hi there. First of all i have a 89 jeep xj 4.0. Ive been going mudding for the past few days and my jeep dies everytime i cross some medium deep water. I dies and just cranks. i let it sit for around 5min and turns right on. What could it be. I have the bottom of the motor covered, so that much water wont come in. Do u think it could be my o2 sensor, cuz it ripped off a couple of weeks ago and i just tied it up donw thier. This is just my mudding jeep, it has headers, 4.56 gears, magnaflow,snorkel,8mm wires, 6"lift,optima yellow top. And i always put wd40 before i go mudding. ANy suggestions would be good.