knocking noise coming from engine on 2001 Chrysler Sebring

Got 2.7 engine at first engine was getting hot,engine was rebeing up,then go down,this shop,put a sensor on it,drove it for about 10 miles, said no problems,i got the car drove it about 50 miles started to hear noise from engine knocking noise took the car back,they said,that, rod blown or bearing came engine is on it start up just knocking

Asked by for the 2001 Chrysler Sebring
Try a different shop , maybe for proper diagnosis.