My car won't start at the first try when its cold, always at the second time, battery is new, its been happening for two days already and I have no idea why,
Do you mean it will crank forever and won't fire? Or you turn the key and there's absolutely nothing?
It'll crank a little bit but will not fire, and at the second try it starts normally, today it wouldn't even crank, I had to play with battery to make it start, I don't understand why is that happening since the battery is new and was working fine three days ago
If it will not even crank, you must have a bad ground or a faulty voltage regulator in your alternator. Or possibly your alternator is bad altogether. Go to an Autozone and have them put a volt meter on your alternator. Also clean your battery cables for any corrosion. Sometimes the corrosion will creep into the cable under the protective coating. You won't be able to see it until you cut back a little bit of the outer casing. You can soak the ends of your cables in baking soda and water. That will neutralize the corrosion if they are bad. Also check the battery cable to your starter. It could be damaged, loose, or corroded also.....
I replaced the battery terminals and is working normal now
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