If you received a clean report on the vehicle you purchased from the dealer but later dicovered that there had been problems with the car not disclosed to you at sale that if you had known about it you would have never made the purchase, you have the following options:1. keep the car and move on, 2. contact the dealership and ask for more details about it and the problems you discovered with it that were not disclosed to you before sale to get more information about the car, 3. ask what the dealer wishes to do because you felt you bought something that you did not intend to purchase which should have been disclosed by the dealership if it actually knew about the undiclosed prior problem, 4. sue the car dealership for the difference between what the car was actually worth when you bought it and what you paid, 5. make a complaint against the car dealership with the administrative agency that oversees this type of business in your state.Good luck.