LP3 - Charge Air Cooler Leakage

^ Visually inspect the charge air cooler for cracks, restrictions, or other damage.

^ Disconnect the inlet and outlet hoses leading from the charge air cooler.

^ Plug the inlet hose with a solid plug.





^ Connect Rotunda Radiator/Heater Core, Pressure Tester 021-00012 or equivalent and Rotunda Cooling System Adapter 021-00053 to the charge air cooler outlet hose as shown.

^ Apply 83-103 kPa (12-15 psi) of pressure.

^ Does the charge air cooler maintain pressure?

YES -- Go to LP4. LP4 - Boost Pressure Switch Voltage

NO -- Locate and repair leak, or replace the charge air cooler.