What happens when intercooler is not cleaned?

When an intercooler is not cleaned, it can accumulate dirt, oil, and other contaminants, leading to reduced efficiency in cooling the air entering the engine. This can cause higher intake temperatures, resulting in decreased performance, increased engine knock, and potential overheating. Over time, neglecting to clean the intercooler can also lead to more severe engine issues, including reduced fuel efficiency and increased wear on engine components. Regular maintenance is crucial for optimal performance and longevity of the engine.