Okay i know its not a Hyundai, its my mates but i think this problem could be basic engine problem not the make.
He owns a Subaru 1987 - 1989, Boxer 4, dont know its CC rating, but its pretty rugged seeing as hes a new driver and its his first car.
the Problem at hand is that while your driving, Cruising, Accelerating, Deccelerating, it surges, slight jumps... hes only JUST got it so I havent had a decent look at it, but I was wondering if anyone knows what it is or has a fair idea,
thanks heaps

BEN.