jak

okay thanks so much!

Hi, im looking at a 2002 forester with a 2.5L flat 6 engine with a 5 speed and 60,000 miles but when i started it up at the used car dealership it ran really rough and almost sounded like a diesel for a bit also the whole car shook a bit when I was starting it and when i shut it down. Is this normal or is it a sign of something wrong with the engine? Thanks