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Battery or Alternator?

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Old 09-24-2010 | 11:14 AM
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Default Battery or Alternator?

In the morning my Battery will crack fine and the car starts up no problem. But if I drive to the store, come back out to the car, I don't have enough juice to start the car again. Even if it was a 30 minute trip.

Replace the battery or something else?
Old 09-24-2010 | 12:04 PM
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How old is the battery? An alternator failure would most likely trigger a light on the dashboard. I'm inclined to think you have a battery issue since they act flaky when they start going bad.

Last edited by Clifton; 09-24-2010 at 12:55 PM.
Old 09-24-2010 | 12:09 PM
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It's the original OEM so almost 5 years old.
Old 09-24-2010 | 12:10 PM
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5 years is a good long time for a battery. I'd vote it is time for a new one. Search for battery replacements, you will see lots of options on this forum that cost a fraction of the OEM Moll replacement.
Old 09-24-2010 | 12:27 PM
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im w/ clifton. prob battery.
Old 09-24-2010 | 12:49 PM
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There is also a possibility that it is the harness. There is lots of information if you do a search. I had a new battery installed and had difficulty starting after short trips.
Old 09-24-2010 | 12:53 PM
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5 years is normal life expectancy on a OEM battery. Alternators and their primary components (voltage regulator) are good for 50K and beyond. I've had them fail at 24K, but that is more of an exception.

I'd start shopping for a new battery. If your handy, it is any easy swap for a do it yourselfer.
Old 09-24-2010 | 09:23 PM
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= 1 Battery
Old 02-08-2014 | 10:40 PM
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It's the alternator cable. I'm changing mine right now.
Old 02-08-2014 | 11:11 PM
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could be. known issues on .1
Old 02-09-2014 | 01:24 AM
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If it starts fine cold but not when the engine is hot, it may be the harness. $90 in parts and around 5 hours of labor.
Old 02-09-2014 | 02:02 AM
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Test your battery, given the age you might have a bad cell. It might be the cable also needs further testing. If you need help diagnosing it let me know, i can do a small write up. On my iPhone now!
Old 02-09-2014 | 09:48 AM
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If the car is running fine once started, then definitely the battery.
Put a meter on it if you have one once the car is started to check.
Old 02-09-2014 | 06:30 PM
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My money's on the harness. You may ALSO need a new battery since 5 years is plenty old, but I'm betting this particular problem is the harness.

I had the exact same issue. The first time my car failed to start was at a gas station after a 45 minute drive. I replaced the battery for about $400 after all was said and done. The next time my car failed to start I insisted the dealer run a diagnostic test on the starter, alternator, and battery. Sure enough, all signs pointed to the harness and it was replaced under CPO warranty.
Old 02-09-2014 | 08:16 PM
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+1 on the harness.. My '05 CPO car had a brand new battery when I took delivery. Kept losing its charge even after longer trips. Had to keep a battery maintainer on it every day. Fixed the harness under warranty and problem solved.



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