Shuts off - then will restart. - Page 2 - Chevy Impala SS Forum
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post #11 of 17 (permalink) Old 09-10-2012, 11:13 AM
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I had the same problem and just recently found out what it was. If you say your ICM is fairly new then try and check ignition coil mines running fine now
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post #12 of 17 (permalink) Old 09-28-2012, 08:37 AM Thread Starter
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3 weeks later and the problem has not re-surfaced and I have done nothing. What a PIA this intermittent stuff is.

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post #13 of 17 (permalink) Old 09-28-2012, 09:07 AM
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Shuts off - then will restart.

My similar problem turned out to be a wire to the icm that was broken inside the insulation. Perhaps the "wiggle" test might reveal this. Check for worn/damaged connectors as well.
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post #14 of 17 (permalink) Old 09-28-2012, 01:19 PM
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I'll second 1slow96's advise....if there was one place GM cut corners on, it is the wiring in these car's.

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post #15 of 17 (permalink) Old 01-07-2013, 11:06 PM
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Even though this thread is from a few months back, I want to add that my car has just started doing this today. The wiggle test indicates the connection to the ICM, as when I barely tug on it, the car shuts off like the key was turned off. So +1 for the wiggle test.

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post #16 of 17 (permalink) Old 01-09-2013, 06:04 PM
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Originally Posted by VF1000R View Post
3 weeks later and the problem has not re-surfaced and I have done nothing. What a PIA this intermittent stuff is.
it could still be fuel suggested it would run ruff before it shuts off not always..i would still check your fuel pressure if it does it again.the wiring harness in the tank is a gremlin for just shutting off. keep us posted.
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post #17 of 17 (permalink) Old 01-09-2013, 06:55 PM
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Dave, didn't you get this figured out? It was a loose ground, right? Or am I thinking of another random failure you had at Nationals?


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