[NYF32DRIVER]

After misjudging the hight of a steep RR crossing and hitting it at approx 30 mph (I also felt the suspension bottom out) I sat waiting for a friend in a parking lot. 5-10 minutes later, I noticed a high pitched WHINE coming from the engine. There was no visible damage to the undercarriage (at least at the front end) the whine stops if I rev the engine only to return a few seconds later. I turned off the engine and re started it ran for approx one minute and the "Whine" seemed to be gone... the car will remain parked until tomorrow morning. Any ideas what could have been damaged ?

Thanks