I have a friend with a 1993 Chevy Lumina and it will not charge the battery for some reason. He just replaced it with a new alternator and had it checked to make sure it was good at the store he bought it. When we jump it off with another vehicle it cranks fine and runs.but then when you drive down the road it will die if you step on brakes.then try to crank it.and it is deadwill not crank.like a dead battery. We had the battery all charged up as the battery is only 1 year old. Even bought a new battery. Why won't this thing charge? It there some kind of other electrical component keeping it from charging properly? What about fuses or some other regulator or realy somewhere? The engine on it by the way is a v-6 and a 3.1liter.
There is an alternator fuse in the under hood fuse box . If that is not blown check the battery wire on the back of the alt for battery voltage .
