Turbocharger Cleaning Procedure

PRE-CLEANING 

1. Disconnect and isolate both of the negative battery cables.
2. Remove the right side battery. Refer to BATTERY, REMOVAL .
3. Remove the engine cover. Refer to COVER, ENGINE, REMOVAL, 6.7L .
4. Remove the air cleaner body. Refer to BODY, AIR CLEANER, REMOVAL, 6.7L .

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5. Disconnect the breather hose (3).
6. Loosen the clamp (1) and remove the inlet tube (2) from the turbocharger.

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7. Loosen clamp (3) and disconnect the right Charge Air Cooler (CAC) hose (1) from cooler (2).

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8. Loosen the clamp (1) and remove the right CAC hose (2) from turbocharger and remove the hose.

COMPRESSOR STAGE REMOVAL AND CLEANING 

1. Mark compressor housing and bearing housing with paint marker before removal in order to provide an alignment reference.
2. Loosen V-band clamp on compressor side of turbocharger. Fully remove the nut and expand the V-band clamp enough to rest the end of the stud on the sleeve to allow the V-band to be held open.
   NOTE:

   Removing the cover at an angle may result in damage to the tip of the impeller blades.

3. Remove the compressor cover by pulling it straight out then discard the V-band clamp.
   NOTE:

   If cover does not come off at this point, do not attempt to force it off, replace turbocharger assembly.

4. Lightly tap around cover with a rubber mallet if the cover is difficult to remove.
   NOTE:

   Some impellers may have a factory placed paint mark which, after normal operation, appears to be a crack. Remove this mark with a suitable solvent to verify that it is not a crack. Replace turbocharger if damage exists.

5. Visually inspect the impeller and compressor wheel fins for nicks, cracks, or chips.
6. Clean compressor housing by applying Mopar® brake cleaner and wiping with clean paper towels or any other absorbent wipes.
   NOTE:

   Do not use shop air, as this will result in rotor spinning quickly which is destructive to the bearings.

7. Clean the diffuser plate by applying Mopar® brake cleaner and wiping with clean paper towels or any other absorbent wipes.
8. Lubricant and install a NEW  O-ring seal onto the turbocharger housing.
   NOTE:

   Installing the cover at an angle may result in damage to the tip of the impeller blades.

9. Using a NEW  V-band clamp, install the compressor housing on the turbocharger. Ensure the alignment pin is engaged into the alignment hole and the paint marker markings line up.
10. Be sure compressor housing is seated fully.  Tighten the NEW  V-band clamp to 9 N.m 80 (in. lbs.).
11. Visually inspect the impeller and compressor wheel fins for nicks, cracks, or chips. Replace turbocharger if damage exists.
12. Visually inspect the turbocharger compressor housing for an impeller rubbing condition. Replace the turbocharger if the condition exists.

POST-CLEANING 

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1. Install the right Charge Air Cooler (CAC) hose (2) to the turbocharger and tighten the clamp (1) to 11 N.m (8 ft. lbs.).

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2. Connect the right CAC hose (1) to cooler (2) and tighten the clamp (3) to 11 N.m (8 ft. lbs.).

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3. Install the inlet tube (2) to the turbocharger and tighten the clamp (1) to 11 N.m (8 ft. lbs.).
4. Connect the breather hose (3).
5. Install the air cleaner body. Refer to BODY, AIR CLEANER, INSTALLATION, 6.7L .
6. Install the engine cover. Refer to COVER, ENGINE, INSTALLATION, 6.7L .
7. Connect the right battery. Refer to BATTERY, INSTALLATION .
8. Connect both of the negative battery cables.
9. Check for any cooling or exhaust leaks and confirm the turbocharger is operating properly. For cooling, refer to DIAGNOSIS AND TESTING . For exhaust, refer to DIAGNOSIS AND TESTING . For turbocharger, refer to TURBOCHARGER, DIAGNOSIS AND TESTING, 6.7L .