What Does a Charge Air Cooler Test Check?

It is an intercooler that cools compressed intake air in a turbocharged engine, unrelated to room air coolers.

Follow the vehicle or component maker’s procedure and pressure limits; system leak checks can pressurize the intake tract and inspect joints.

Some checks can be done in place, but the right method depends on vehicle access and service instructions.

A leak can affect boost and engine operation. Diagnose the system with the vehicle’s service procedure rather than assuming one component is at fault.