Q: Random hiccups and fuel problems, what could it be?

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I have a really frustrating problem with my 2011 Jeep Grand Cherokee. The car has around 65,000 miles on it but it runs alright, even if it sometimes has a little hiccup on startup. When I turn it off, though, the fuel pump has a tendency to run on its own. I am worried that permanent damage may be occurring to the fuel pump or other parts of the fuel system. On multiple occasions, this running fuel pump issue totally killed by battery and I had to jump it in the morning. I have no idea where to even start diagnosing this problem, there are not any fuses out. What is happening here?

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