B3.9 and B5.9 Series Engines
Troubleshooting Symptoms Charts
Section TS - Troubleshooting Symptoms
Engine Noise Excessive -- Turbocharger
This is symptom tree T052.
Check the air intake system for restriction.
Air intake system restriction is above specifica-
Clean or replace the air filter and inlet piping
as necessary. Refer to Procedure 010-031.
Inspect the air piping, chassis, and cab for
ir intake or exhaust piping is contacting the
contact points. Refer to the OEM service
chassis or cab
xhaust system restriction is above specifica-
Check the exhaust system for restrictions.
Refer to Procedure 011-009.
Check the turbocharger part number and
compare it to the Control Parts List (CPL.),
Bulletin No. 3379133. Replace the turbo-
charger if necessary. Refer to Procedure
urbocharger is not correct
Check the turbocharger for damage. Measure
urbocharger is worn or damaged
Refer to Procedure 010-047.