Well, The other day I was Driving and all of a sudden my overheat light and battery light came on. I pulled into a discount auto parts, and everything seemed ok, except for the battery. Just needed to add coolant in regards to the overheat light. So then, as i was driving back home, the battery light came on again. And as I was parking, the car completely shut off. I tried jumping the car, but the car wont hold a charge once the cables come off. The diagnostic test said the battery was bad, but the alternator was good. Im thinking its the alternator, cause Ive had that issue on a previous car. However, i spoke to a mechanic, he stated that if the battery is really bad, it wont past the charget o the alternator. something like that. It might not even be the alternator. However, money is an issue, so I dont wanna tow it if what the mechanic said is true, I can easily replace the battery myself. Any input anyone? I would greatly appreciate it!

 

I was thinking alt as well..Did you pull the alternator out and have it benched tested?

 

whats the mileage of the alternator? if it is indeed the alternator, you can just buy the replacement brushes to replace and this will fix 95% of alternator problems.