What is causing my car to die and not have power?
Ok so here's the deal. My 2003 Nissan Altima S 2.5 had the alternator go bad in it in town. My in laws put a fully charged battery in it and got it home. The next day we changed the alternator. When we went to test drive it it had no power, wouldnt shift out right and kept dying. we checked the ignition coils and 2 of them were bad and the spark plug chambers were full of oil. we cleaned the chambers and changed the valve cover. STILL wont run right, same issues. So we changed the ignition coils after cleaning the chambers again. STILL same problems. Then we changed the spark plugs and PCV valve but my father in law broke the hose that connects to it so he cut a piece of air hose to use. STILL WONT RUN RIGHT! HELP PLEASE.
oh and the car ran out of gas when they got it home so my father in law put 2 cycle gas (half oil half gas) in it