Leaky charge air intercooler will produce?

A leaky charge air intercooler can lead to a decrease in engine performance due to reduced air density and inefficient cooling. This results in a higher intake air temperature, which can cause the engine to run lean and potentially lead to knocking or pre-ignition. Additionally, it may trigger warning lights and diagnostic trouble codes (DTCs) in modern vehicles, indicating an issue with the air intake system. Overall, the leak can compromise the vehicle's power output and fuel efficiency.