Upon acceleration the engine is making a thumping/shuddering/pounding noise. It is hard to describe as I work on things usually myself, and haven't experienced this before. The check engine light isn't on, and no warning lights. Upon acceleration, the thumping starts low and spaced, and as I increase speed the sound becomes more pronounced and rapid. It seems to come from the top end, center right if facing engine.
Mar 4, 2015 at 8:01 PM
