TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
Troubleshooting Symptoms Charts
Section TS - Troubleshooting Symptoms
Page TS-41
Engine Noise Excessive -- Turbocharger
This is symptom tree T052.
Cause
Correction
Check the air intake system for restriction.
Air intake system restriction is above specifica-
.......
Clean or replace the air filter and inlet piping
tion
as necessary. Refer to Procedure 010-031.
OK
A
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
manual.
OK
E
xhaust system restriction is above specifica-
Check the exhaust system for restrictions.
.......
tion
Refer to Procedure 011-009.
OK
T
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
010-033.
OK
T
Check the turbocharger for damage. Measure
urbocharger is worn or damaged
.......
the turbine and compressor wheel clearances.
Refer to Procedure 010-047.
L-625
