Nissan Repair: 96 sentra main battery fuse keeps blowing, battery cable, alternator


Question
Why does the 75 amp bat. fuse keep blowing after i replaced the alternator.The headlights work but nothing else does.Please help me.

Answer
Hyrum,

Check the connections at the positive battery cable as the fuse links have probably blown too.  I would say that I would be checking the output of the alternator and see if it is putting out too much voltage.  Also, check to see if there is a dead cell in the battery and that could be causing the problem.  You are either putting out too much voltage from the alternator or something is drawing one hell of a load.  The only thing that I can think of is the battery.  If there was something else doing it you would be smoking parts.