can I sue for damages and pain and suffering ?

You can sue for anything, but if you eeren’t Injured your claim for pain and suffering would probably be dismissed.  Presumably, your damages will have been covered by insurance, which means that that your insurer will be repaid out of any money you recover, and it may be that your insurer, not you, would better handle any claim against the mechanic.  I’m not sure how it works in your state, but you should at least discuss it with your insurer before starting any suit, especially if you plan to use a lawyer.