What is the typical life of an alternator in the Taurus? I have 104,000 on the original alternator (1998 Vulcan) and am just concerned that it might go out at any time. Should I be thinking about an alternator rebuild? Or replacement? I am a former Chevy man and it seems that those alts seem to go out about 80,000. My reasoning is that it is less expenive to do planned maintenance than unplanned with a tow! Want to make this car as reliable as possible for my wife. BTW, thanks to everyone for help with 401 code. Replacing sensor did the trick.