Diagnostic Test

CHARGE AIR COOLER PRESSURE TEST 

1. Loosen the Air Inlet Tube clamp at the Turbochargers.
2. Remove the air filter housing and the inlet tube from the vehicle as an assembly in accordance with the Service Information. Refer to 3.0L [EFC], BODY, AIR CLEANER, REMOVAL AND INSTALLATION or 3.0L [EFH], BODY, AIR CLEANER, REMOVAL AND INSTALLATION .
3. Install the

   (special tool #2080100090, Tool, Air Pressure Test)

   CAUTION:

   Never attempt to start or run the vehicle at any time during this test, engine damage may occur.

4. Block off any ports on the intake manifold and the unused fitting.
5. Before attaching shop air to the pressure regulator verify that the regulator is at its lowest pressure setting (0 psi).
6. Attach an air supply to the regulator and slowly increase the pressure until the pressure gauge reads 10 psi.
   WARNING:

   Never apply more than 30 PSI.

7. Using Mopar Air Leak Detector or equivalent, spray the Turbocharger, Charge Air Cooler (CAC) Heat Exchange and Hoses while watching for leaks.
8. Before any attempt to repair the system is made, it's necessary to completely discharge the system. This can be accomplished by turning the regulator knob counter clockwise.
9. Allow for adequate time to pass before removing the Pressure tester from the Turbocharger inlet.
10. Remove tool 2080100090 and connect all port that were plugged.
11. Install the Air Filter Housing and Air Inlet Tube as an assembly in accordance with the Service Information. Refer to 3.0L [EFC], BODY, AIR CLEANER, REMOVAL AND INSTALLATION or 3.0L [EFH], BODY, AIR CLEANER, REMOVAL AND INSTALLATION .

    View Repair

    Repair 

    • Test complete.
    • Perform the POWERTRAIN VERIFICATION TEST. Refer to 3.0L [EFH], POWERTRAIN VERIFICATION TEST or 3.0L [EFC], POWERTRAIN VERIFICATION TEST .