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Originally Posted by meistermind
Sounds like an electrical-electronic problem. Especially if it runs fine after starting back up. Sometimes electrical problems start as a intermittent problem that makes the car die out as if you just turned the key off. Sometimes you can start the car back up right away or after a short amount of time. As it gets worse, it happens more often and it takes longer to start the car again. Usually electrical items fail after they have run for a period of time and get hot, but the problem can come sooner and more often until failing completlely.
A fuel pump can do this also- fail after running awhile. I've had luck trouble shooting these items by letting the car heat up real good and run until fails in the driveway or drive around the block. I know its hard to troubleshoot something that aint broke. If you suspect an ignition part, then sometimes you can lighty tap on the part to make it fail or "fix" it. Or better blow on the failed hot part with an air hose to rapidly cool it down- then see if it starts back up (I once troubleshot a bad Crank Pos sensor this way). This works great to trouble shoot ignition parts. Could be an Ignition Module (under the coils), Crank Position Sensor, ECM (computer). I know that NAPA and some other auto store have good equipment to test many of these modules if you take them out and bring them in.
I had my Ignition Module fail this way... It crapped out once and started right back up fifteen minutes later. No problem for two weeks, then it crapped out again and wouldn't start for 3-4 hours. Ran great for a week and crapped out- wouldn't start until the next day. I brought it home and let it run in the driveway for about an hour and it crapped out for good- no more start period. I kinda suspected it because of the symptoms, so I took it to NAPA and they confirmed it on their tester. A new one fixed it for about $90.
Good Luck!!
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changed crank pos sensor,started right up left it run ,shut down ,started right up. let sit over night,started up in morning,stalled and now wont start again.