Last week while driving 65-70 on the fway I hit what it seemed like a empty paint can. I check the car and only noticed just the bumper getting cracked and few plastic pins being off. The other day on close inspection and trying to tight everything down, noticed the damage was more extensive. The under shield had a scuff but not much more, but the black oil pan I think was indented inward about 1 inch. I called the dealer and asked what I should do, and they said if it does not leak or throws a code is fine. I was ok with that but I noticed that my cooling fan spins more than I am custom to at low speeds but also this morning being colder the lifters were making more ticking noise. SHould I be concern and change that black pan? Does anyone have a diagram of the engine parts?