Walter

I went 4 wheeling today. Good day all in all. I broke off my muffler. No big deal right. I'm driving home down the high way, the jeep losses power and then gets power back keeps doing this for 10 miles then it dies. It does this for the next couple miles to the house. Bout twenty minutes later got a call that I've got to get to the hospital. Didn't want to but had to drive it. It didn't give me an issue. I had some work on the carb bout a year ago. But I think it's vapor locking due to the gone muffler. But it went an hour and a half more on the trail. So any opinion or help is great and thank you very much.