problem with Nissan Sentra 2002
My car was not like this before. I felt different in driving after oil change, transmission fluid and coolant were changed @ Rapid Blue. A week later Alternator died. Alternator was replaced along with belts. I still had feeling that there was something wrong so I had my friend(mechanic) test drive but he didn't notice anything wrong. I took it to nissan dealer, they also said rpm is fine.
116k miles on it.
anyone have any idea what could be wrong?