If the vehicle stays running after jumping that means the alternator is most likely charging and maintaining voltage, sounds like your battery needs to be replaced. Do you know the age of the battery? Most batterys have a life expectancy of 5-7 years. I have seen a few chevy ventures that the positive battery end actually corroded so bad that they make no contact with battery. Hope this helps, let me know if you have anymore questions.
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Sunday, February 27th, 2011 AT 11:40 PM