For service and repairs on the charge air cooler system, first take away the battery's negative connection and purge the A/C system. Take out the auxiliary cooler of the transmission and the tubing from the charge air cooler, then unscrew the bolts and shift the charge air cooler out and upward to remove it. Avoid using harsh cleaners for your system and if dirt in the inside cannot be cleaned off, you will need to get a new charge air cooler. When turbo-charger damage or oil stain happens, place the charge air cooler with the air tubes straight up and down, pour solvent into its tubes against the usual air current using a stream siphon, give it a light shake and strike both ends with a rubber mallet to drive out debris. Keep running water in the valve until the contaminants are all out, then wash it with hot soapy water, rinse with clean water and finish by blowing out with compressed air. Check for any cracked or broken parts, along with holes and damage in the tubes, fins or welds of the charge air cooler. If anything is found, then replace the entire cooler. Check the charge air cooler with Charge Air Cooler Tester Kit No. 382456 purchased from Cummins Service Products as explained by the directions. When installing, slide the charge air cooler into place, secure it with bolts turned to 2 Nm (17 inch lbs.) torque and connect the intake tubes to the charge air cooler, with clamps tightened to 11 Nm (95 inch lbs.) torque. Install both transmission auxiliary cooler and A/C condenser if included, connect the battery's negative cables, then check for boost system leaks by running the engine.