MALFUNCTION, TEST OR INSPECTION, AND CORRECTIVE ACTION
TEST OR INSPECTION
AIR INTAKE SYSTEM
EXCESSIVE TURBOCHARGER NOISE OR VIBRATION
Step 1. Check for improper clearance between turbine wheel and housing.
a. Remove vehicle exhaust pipe.
b. Inspect turbine wheel and housing for nicks, cracks, or contact between
wheel and housing.
c. Replace turbocharger assembly if damaged (Refer to Paragraphs 4-2,5-2,
5.1-2,6-3, or 7-3 for appropriate engine model).
d. Install vehicle exhaust pipe.
Step 2. Check for leaks in air intake or exhaust manifold.
a. Tighten loose connections.
b. Replace leaking gaskets.
END OF TEST
C h a n g e 1