Hello all. About 3 weeks ago I made a post about my 350z not cranking or starting. Alot pointed me to the battery so I tested it, tested and it tested dead. Replaced the battery this Sunday and it started right up. Tried to start it again this Wednesday and again, just one click and no crank no start. Could it be the alternator? Replaced the starter already like 3 weeks ago. Its probably also a parasitic drain but I wouldnt know how to trace it. Car has 115k miles and idk if the the alternator was ever replaced in that time. All accessories and even A/C still work.

 

I recall suggesting in that thread that you replace the alternator. why are you asking again?

 

^THIS^

If you suspect parasitic drain, that can be measured with an "Amp Hound." Most folks don't want to buy the tool or learn how to use it, so having a shop diagnose is the easiest option.
Good Luck!
-Icer