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Old 12-19-2004, 04:20 PM   #1
tooocool49723
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Join Date: Jul 2004
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Default How cold is too cold?

Ok, went to start my car this morning and it turned, but didn't start. I was running a little late, so i grabbed my mom's keys and went to work.

It was -10 then.

Now it's warmed up a bit (10ish above) but the car still wont start!!! It turned over for about a second and a half, then died again.

And to top it off, the battery was showing signs of death due to chug-chug-chug but no start (starter didn't turn as fast). So i've pulled the battery and it's warming up inside right now. The reason i'm doing this is because I know that chemical reactions work faster/better when warm, and a battery is a chemical reaction machine.

Also, the fluid in the battery is below the "low" level.

So, ya think that the battery = low voltage = no start? or am I off my rocker?

(note to self - battery & block heater for x-mas)
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Old 12-19-2004, 04:23 PM   #2
Subie Gal
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battery the original one?

if so... go buy a new one....
sounds like it's had it

Jamie
www.subiegal.com
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Old 12-19-2004, 04:33 PM   #3
DJ 9iron
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I just picked up a new one for that same reason... Cold killed it.
72 CCA
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Old 12-19-2004, 05:25 PM   #4
tooocool49723
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***UPDATE***

Warmed it up for about an hour, threw it back in and it started!! then it died because it reset the ECU, but the second time around it started and kept going. Cold batteries are the devil!!!!
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Old 12-19-2004, 05:53 PM   #5
Uncle Scotty
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Wow......
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Old 12-19-2004, 08:14 PM   #6
DaveTaylor
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Not wanting to sound too picky but....it was the heat that killed your battery, the cold simply exposed the battery’s loss of cranking capacity. Batteries lose cranking power dramatically as temperatures drop below freezing and cranking requirements climb as cold engines stiffen up. Batteries that have lost their ability to take a full charge during the hot weather don't display their short comings until the temperature drops. FWIW, a battery warmer is very effective in maintaining cranking capacity and combined with synthetic oil is the best way to get reliable cold starts.
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Old 12-19-2004, 08:16 PM   #7
tooocool49723
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(already got synthetic oil)


(will get red top when funding available)
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Old 12-19-2004, 08:23 PM   #8
Matt
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Just remember to keep an eye on the water level of the battery. The factory batteries aren't maintenance free and will need to be topped off occasionally. My factory battery went from temprature ranges of -10F to 105F and lasted three years and 80k miles (traded the car in). Oh, and as mentioned above, a battery warmer and/or block heater may useful as well.
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Old 12-20-2004, 12:46 AM   #9
phantomsr
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Yeah, time for a new battery for sure. I forgot to plug my car in one day at around -15F and it wasn't happy but it still started. And that was with 10/30 dino oil. If you're in a cold climate through a long winter, 0/30 synthetic will help a lot with cold starts and makes sure you have plenty of oil flow at startup. Optima dry cell batteries are great in the winter, and yellow top Optimas can take be run dead and charged many times without dying like a wet cell .
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Old 12-20-2004, 10:07 AM   #10
kingsubi
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new battery and it was -40 C this morning. started like it was +30 C
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Old 12-20-2004, 01:32 PM   #11
Yotsuya
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Battery warmers are handy if you're in a cold zone, but so are block heaters if you don't want synthetic oil (or even if you do, I guess).
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Old 12-21-2004, 02:38 PM   #12
suby4ub
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my car has teh same problem i got a new battery last year after i got sick of jumping it and being late. the new battery might help but someone told me today to turn the key to on and let the fuel pump prime then try it
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