No start after coolant leaked out

I was driving on the freeway when my car shut off after I got off. I let the car roll and then I jump started it that way. Once the car was started it sounded really bad and I rolled into the parking lot looked under the car and seen it was leaking. When I looked into it further the hose on the bottom of the radiator was completely disconnected and all of radiator fluid leaked out. I refilled it and was able to go back home from work and start the car the next day just fine but it sounded bad. I had a PO118 trouble code so I reset it thinking that it just needed fluid and that is what set it off was it being empty. I started the car up trying to troubleshoot it and drove it around it was kind of hesitant and I was getting a open loop fault on it but no check engine light so I parked the car and went out the next day and it would not start and it was backfire and sounded really bad but it never started back up. So I replace the coolant temperature sensor but it is still doing the same thing. I do not know if the engine is blown or what is going on. Can you help?