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Old 11-21-2012, 10:28 AM   #1
beazer76
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Default Car starting Issue!

Hi All,

New to the forums, I have a 2009 WRX. Yesterday when leaving work I got in my car and it wouldn't start. Lights, radio and everything worked fine however I noticed all my presets and clock reset. No one had cables so the only way to get it started was to pop start it which worked. All lights and such were fine, I drove home with no issues and went to the auto store. I didn't want to shut it off and his their jump pack was having issues so he tested the battery while running. It was 14.6. I then went home turned it off and waited a few seconds and tried to start. It started with no issues. I went in had dinner, tried again about an hour later and still started fine. I tried one more time before bed, about 4 hours later and still fine. Got up the next morning and still fine, drove to work with no issues. Now I'm at a loss. It doesn't appear to be the starter, battery or alternator. I haven't had a chance to look at loose wires which I'll do this weekend.

Has anyone experienced problems such as this? At lunch I had listended to the radio for roughly 30 minutes but that wouldn't be enough to drain a battery. I'm at loss here.

Thanks,
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Old 11-21-2012, 12:40 PM   #2
Cougar4
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Default

It sounds to me that the battery may be weak and you may need to replace it. I suggest you have the battery load tested to see what the capacity is and check the alternator output also. Make sure it is ok. Another thing to do is check the current drain on the battery while things are shutdown to make sure the drain is less than 25 milliamps.

Listening to the radio for that long does put a pretty good drain on the battery though a good fully charged battery should have been able to do that.
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Old 11-21-2012, 08:21 PM   #3
J-hop
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I would have the battery checked out (removed from vehicle) at an auto store it could be weak assuming that you didn't leave anything on while at work when it first died.

A couple things:
(1) it doesn't take much power to run the lights/radio for a short time in comparison to how much power it takes to turn the starter over so it makes sense that you could run a few accesories but not start the car if the battery was near dead

(2) I could be way off but I don't think it is possible to measure battery condition with the vehicle running, I believe you will just be reading the alt output.
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Old 11-22-2012, 12:18 AM   #4
ProdriveDreams
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W/06 STi Drivetrain swap

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Quote:
Originally Posted by J-hop View Post
(2) I could be way off but I don't think it is possible to measure battery condition with the vehicle running, I believe you will just be reading the alt output.
Correct, I think the OP was getting at, that it seems like his alternator is fine so it should be the battery, but then his battery now appears to be fine.

It's also possible you left something silly like your glove box not quite closed and it drained the battery... but you should ahve the battery load tested either way.
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Old 11-22-2012, 04:35 AM   #5
98wrex
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Or the standard battery terminals might not be tight enougn as dumb as it sounds
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Old 11-22-2012, 10:41 AM   #6
ProdriveDreams
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Quote:
Originally Posted by 98wrex View Post
Or the standard battery terminals might not be tight enougn as dumb as it sounds
That's true... i've seen this happen and give weird inconsistant no start situations.
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Old 11-27-2012, 03:22 PM   #7
beazer76
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Thanks all for the posts. I checked all the wiring and everything appears fine. I haven't had any other issues since that day. The car even sat from Turkey Day until late Sunday night when I thought I should check it just in case...and it started fine after sitting a few days.

I'm planning on having the battery checked out just to be safe and if so I'll replace before it gets real cold.
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