ABNORMAL NOISE (Possible Cause) (Check Procedure and Correction Method) 1. TURBOCHARGING HEAT INSULATOR RESONANCE Check for loose, improperly installed or deformed insulator mounting bolts, and repair or replace as necessary. 2. EXHAUST PIPE LEAKING OR VIBRATING Check for deformed exhaust pipe, loose mounting bolts or damaged gasket, and repair or replace as necessary. 3. ERRATIC TURBOCHARGER OPERATION Refer to item 6 of INSUFFICIENT ACCELERATION, LACK OF POWER OR EXCESSIVE FUEL CONSUMPTION. EXCESSIVE OIL CONSUMPTION OR WHITE EXHAUST (Possible Cause) (Check Procedure and Correction Method) FAULTY TURBOCHARGER SEAL Check for oil leakage in exhaust system. • Remove the turbine elbow from the turbocharger and check for excessive carbon deposits on the turbine wheel. Excessive carbon deposits indicate a faulty turbocharger. Check for oil leakage in intake air system. • Check for axial and radial play of turbine shaft and replace the turbocharger if necessary. (See page EG-158) Maximum axial play : 0.110 mm (0.0045 in.) Maximum radial play : 0.162 mm (0.0064 in.) NOTICE: Some oil mist in the blowby from the PCV is normal. Do not mistake it for an oil leak from the turbocharger.