If there was no credit check when you purchased a used car will it go on your credit record if it is repossessed?

Yes it will most definatly go against your credit report. A credit check is only to provide a lender with a picture of your credit history. it has nothing to do with wether or not you have good credit or bad credit in its self. wether or not you pay your bills on time and how much you owe is what determines your credit rating. if you do not pay your bills your credit rating will suffer and fewer institutions will lend to you. when they view your credit report they will see you as a bad risk.