I recently noticed a light "thumping" sound coming from (or around) the engine compartment. It only occurs after it transitions from electric to gas while accelerating at low speeds at 1200-2000 RPM. It appears to go away after increasing speed (25mph +) or when in electric mode. The overall performance of the vehicle doesn't seem to be affected. My Sportage currently has 58k miles on it. I plan on bringing it up at my next service interval if it continues.
I'm curious if anyone else has experienced this?