Postby car_bore » Mon May 23, 2016 11:45 am
Hi everyone, just a quick update. We found the problem already, and it turns out to be a very bad valve gasket cover and really worn spark plugs. All the plugs are almost covered in oil, causing the misfire, the surging and the random dying. The guy who I bought the car lied to me about replacing the spark plugs at 100k service coz cleary they're still the original spark plugs. I also checked the carfax records and those were never replaced.
Lesson learned: when buying second hand, always ALWAYS ask for service records/carfax.
Thanks guys!