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Cooler And Hoses, Charge Air: Cleaning

WARNING: This page is about a different car, the 2019 RAM 3500 HD and 2019 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:

Do not use caustic or acid based cleaners to clean the charge air cooler. Damage to the charge air cooler will result.

NOTE:

If internal debris cannot be removed from the cooler, the charge air cooler MUST be replaced.

NOTE:

Charge air cooler must be at room temperature for this procedure.

  1. If the engine experiences a turbocharger failure or any other situation where oil or debris get into the charge air cooler, the charge air cooler must be cleaned internally.
  2. Remove the Charge Air Cooler (CAC). Refer to COOLER AND HOSES, CHARGE AIR, REMOVAL AND INSTALLATION, 6.7L .
  3. Position the charge air cooler so the inlet and outlet tubes are vertical.
  4. Thoroughly clean the charger air cooler internally with a non-caustic solvent (i.e. dish soap or laundry detergent/water mixture) in the direction opposite of the normal air flow.
    WARNING:

    DO NOT use mineral spirits, combustion cleaners or equivalents to clean the charge air cooler and hoses. Residue from these chemicals may enter the engine combustion chamber, enabling the engine to over rev and could possibly cause damage to the engine.

  5. Shake the cooler and lightly tap on the end tanks with a rubber mallet to dislodge trapped debris.
  6. Continue flushing until all debris or oil are removed.
  7. Rinse the cooler with hot soapy water to remove any remaining solvent.
  8. Rinse thoroughly with clean water and blow dry with compressed air.
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