My girlfriend HAD that same problem. First her battery light came on and off for a month and her lights would dim alot. Then we were going through downtown in rush hour and all the electronics went on and off and flickered the the engine started knocking it got real slow then died. So after i pushed it across three lanes of traffic we got a tow truck and took it to a mechanic who said it had something to do with a fuse for the computer that controlled some relays or something. Long story short she bought a new truck not long after that incident, and she had a few problems in the past. So ur not the only one.