Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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The engine dying like the key is shut off is usually a bad injection pump. These are notorious for this issue. When it will not start, see if you can unplug the optical fuel temp sensor on the top of the pump. If it will start after that is unplugged then it is a bad injection pump.
Troy, yes it could be, and most try that first with a cooler device called an FSD cooler. install is about 20 mins.