[gdmubeen]

I have a 99 concorde lxi 3.2 and it recently gave me trouble. It was starting and driving fine after I bought it for about 3 days. Then it started acting up on the highway like jerking and the lights flashing on and off. I pulled to the shoulder and it just stopped running, it started back up fine. A 1/4 mile down the road it started acting up again and shut off. I got a new battery in it now and i got the alternator checked twice by 2 differnt testers and it checked out good. The battery is now dead because I tried to drive it and it acted up like it was getting no power and i had to jump it and got it home. Is there anything else that I can do to avoid taking it to a shop?