ABNORMAL NOISE (Possible Cause) 1. TURBOCHARGER INSULATOR RESONANCE 2. EXHAUST PIPE LEAKING OR VIBRATING 3. ERRATIC TURBOCHARGER OPERATION (Check Procedure and Correction Method) Check for loose, improperly installed or deformed insulator mount bolts and nuts, and repair or replace as necessary. Check for exhaust pipe deformation, loose mount bolts or a damaged gasket, and repair or replace as necessary. Refer to item 6 of INSUFFICIENT ACCELERATION, LACK OF POWER OR EXCESSIVE FUEL CONSUMPTION. EXCESSIVE OIL CONSUMPTION OR WHITE EXHAUST (Possible Cause) FAULTY TURBOCHARGER OIL SEAL (Check Procedure and Correction Method) 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 would indicate a faulty turbocharger. Check for oil leakage in intake air system. • Check for plays in turbine shaft, and replace the turbocharger if necessary. (See page TC-14) Axial play: 0.13 mm (0.0051 in.) or less Radial play: 0.18 mm (0.0071 in.) or less NOTICE: Do not mistakenly diagnose ordinary oil mist from the PCV in the blow-by gas as an oil leak from the turbocharger.