I was driving my truck last night when the lights began to dim to nothing. Continued driving home, and vehicle ran fine, but no electrical (no radio, interior lights, exterior lights, etc.). When got home, battery was completely dead. So my conclusion is that it is probably the alternator (battery was replaced a month ago) but can your car still run with a dead alternator? I thought that the fuel pump would still need juice? Any ideas?
Thanks,
Matt
P.S. Haven't had a chance to check the voltages at the battery when running, etc. Will be doing that tonight.