I have a 2016 GT with 12,000 miles that I bought used from a Ford dealer (had roughly 6,000 at the time), it was bought as CERTIFIED. I later found out that this car already had Eibach sportlines on it, my question is, now 6,000 miles after purchase i have a clunking in the drivers front at low speeds on dips and bumps. Any suggestions on what this is and will it be covered by warranty since they sold it to me this way?