Earlier today while clearing brush, I ran over a bump and the engine started cutting out.. A moment later it died. It would start up for a second or two the first couple of tries, then it wouldn't start at all.
The machine ran fine all day on the same tank of gas (more than half a tank still left). I've bled/primed the lines but it didn't help. Checked for loose wires - everything seems to be OK. It is a Caterpillar 3-cylinder (ASV track loader).
Check the fuel supply system. Filter, tank screen and supply line. If the tank is contaminated, it could be plugging the fuel supply. Running over something can shake the tank and stir anything up as some sediment can lay in the bottom of the tank. This is a cheap fix, but, if it's the pump, that's another story. PJ
I had a vehicle that ran well on smooth ground but would fuel starve on rough terrain. Turned out to be dirt in the tank that would get stirred up. Let it sit for a while and the dirt would settle back down. By the time I got a pressure gauge on the fuel line, it would test out fine. Drove me crazy for a while before I figured it out. Ran it for a while with the pressure gauge hanging in the cab.