A charge air cooler reduces the temperature of compressed air from the turbocharger before it enters the engine. This supports efficient combustion and reliable engine performance. When the CAC develops a leak, the engine may not receive the correct amount of pressurised air, resulting in incomplete combustion, reduced power, and increased fuel consumption.

A leaking CAC can also contribute to elevated soot levels, higher coolant temperatures, and premature damage to critical engine components, including pistons, rings, valves, and turbochargers. These issues can turn a seemingly minor air leak into an expensive repair.

Dura-Lite recommends testing charge air coolers during regular vehicle servicing and oil changes. Identifying leaks early can help truck owners address problems before they lead to more significant repair bills and unplanned downtime.

Use our Leaking Charge Air Cooler Calculator to discover how much you could save by replacing a leaking CAC.

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