2000 Intrepid

Just had valve intake repairs on 2000 Intrepid…after repairs car still had the same problem…now mechanic is saying needs new engine…does this sound right.?

How many miles? Why were the intake valves “repaired” or where they replaced? All of them or just how many? What was the problem that is the same now?

eng size?
what was wrong?


Would have to see estimate or receipt