PFO3 - Turbo Rotor Vane Condition

Check Turbocharger Rotor Vane Condition:

^ With the turbo inlet pipe and the front pipe (exhaust) removed from the turbocharger, visually inspect the turbine wheel and the impeller wheel for excessive wear or damage due to erosion, foreign objects, oil leakage, or overheating.

^ Is the rotor free of any evidence of worn or damaged turbine or impeller (compressor) vanes?

YES -- Go to PFO4. PFO4 - Turbo Seal Leakage

NO -- Replace the turbocharger assembly.