High Voltage (charging system problem)
2004 Xterra SE S/C 110,000miles
Car died - got a new battery because it was 5 years old
(1 week later) Battery & brake lights come on when I accelerate - had an auto parts store test it and it said it was charging at too high voltage - got a new alternator
Car worked fine for about 2 weeks (400 miles) now, when I accelerate the battery & brake lights come on and sometimes the radio stops working ( all issues generally stop when I let off the gas) Also, the battery dies almost every night.
Tested again and the charging system still has high voltage (16.7+ no load, 15.9+ loaded)
When I took the old alternator back for the refund, I had them bench test it in the store and it passed, so i don't think it's an alternator issue at this point. Also, they wouldn't exchange the battery because that is testing good.
Took it to the dealer and they found a 5amp draw from the battery even when the car is off, they pulled each fuse to see which one would stop the draw and none of them made a difference.
They wanted $100 per hour after that to run more diagnostic and thats out of my budget so here I am, stuck, desperately hoping you guys might be able to help.
On a side note, since before I replaced the alternator, both of my interior cabin lights have not worked when opening the door or manually putting them on.