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post #1 of 21 (permalink) Old 03-15-2012, 04:42 PM Thread Starter
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05 Cobalt Stalling

Hi,
Recently my 05 Cobalt has been stalling out whenever I hit a pothole or bump. When this happens, my car will shut off, the doors lock, the check engine light flashes, the radio turns off and the clock resets. Today it stalled out three times after hitting a few potholes. And it seems I only have this problem when I hit a pothole/bump with the right side of my car. Its such a strange problem that I haven't been able to find much info online. Does anyone know what the problem is?

Thanks a bunch for any help!
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post #2 of 21 (permalink) Old 03-15-2012, 04:49 PM
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Check all your electrical connectors/harnesses.

Old Car: Chevy Cobalt 2006 LS Sedan base (Automatic)

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post #3 of 21 (permalink) Old 03-15-2012, 04:53 PM
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Obviously your losing battery power so check right at your battery post to make sure both clamps are tight.

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post #4 of 21 (permalink) Old 03-15-2012, 05:03 PM Thread Starter
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I'll give the battery clamps a check. Would that explain why it only happens when I hit something on the passenger side?
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post #5 of 21 (permalink) Old 03-15-2012, 06:33 PM
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Yep, depending on how wires are hanging off battery in the trunk.

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Last edited by Coby7; 03-15-2012 at 07:52 PM.
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post #6 of 21 (permalink) Old 03-15-2012, 06:50 PM
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Yea, it would explain why your doors are still able to lock, it seems the clamp is just sitting on top of the battery terminal, one or both.

The CEL should only flash if your car is not firing at all on one or more of the cylinders, but a battery clamp coming off could cause all sorts of false info...

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post #7 of 21 (permalink) Old 03-15-2012, 07:59 PM Thread Starter
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Thanks!! Hopefully that works. Its crazy how just hitting a pothole or bump causes so much of a problem.
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post #8 of 21 (permalink) Old 03-15-2012, 08:12 PM
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Well, its not "just" hitting bumps, mine car does that all the time and it does not happen, as a matter of fact, I think 99% of cars do that and their fine.

You have pothole hitting + something loose in your car. As for why its happening to you, is a mystery.

Just remember your battery is in the trunk, next to your spare. if the connector is in tact, but you see corrosion, I would get a new battery, not always needed, but corrosion is usually the result of a weak battery. The cheapest place to get a 'good' battery is Sams Club, you can get an interstate battery for about $70. The cold cranking amps will be 590, its 10 shy of the original battery, but it should be fine, my interstate battery is.

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Last edited by johnccc; 03-15-2012 at 08:35 PM.
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post #9 of 21 (permalink) Old 03-16-2012, 05:52 AM
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Was it the battery clamps, Specialk?

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post #10 of 21 (permalink) Old 03-16-2012, 07:55 AM Thread Starter
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There was a gray wire not connected. Gray wire, black at the end that connects into the side of the battery. Sorry, I don't know what its called. My keyless remote isn't working at the moment(it worked about 10 minutes before to pop the trunk though) so I can't get past the alarm to drive my car to see if it was just the loose wire causing the issue. I'm having someone bring me a new battery for the remote. Hopefully that'll get me into my car so I can take it for a test drive! One thing after another lately with this car!
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