Troubleshooting - Hino Motors J08E-VC Workshop Manual

TROUBLESHOOTING

1. Table 1-1 Troubleshooting-Engine Exhaust Lacks Power or Engine Exhaust Emits Black Smoke
Symptom or trouble
Possible causes and remedies
(See Notes A and H✩)
Dirty air cleaner
element
YES
Replace air cleaner
element
(See Notes D and F✩)
Leakage at
turbocharger
mounting flange
YES
Check condition of
gasket at
turbocharger
mounting flange and
tighten loose bolts
Restricted engine
exhaust system
(after turbocharger)
YES
Remove restriction
or replace
turbocharger as
necessary
✩ Shown on Table 1-9
TURBOCHARGER (J08E)
ENGINE LACKS
POWER
(See Notes B and C✩)
Loose compressor
NO
to intake manifold
duct connections
YES
Tighten duct
connections as
required
(See Notes K✩)
Turbocharger
NO
rotating assembly
binding or dragging
YES
Perform
troubleshooting
procedures
outlined in table 1-
7
Restricted engine
NO
intake or exhaust
manifold
YES
Refer to engine
manufacturer's
service manual
OR
ENGINE
EXHAUST EMITS
BLACK SMOKE
NO
Leakage at engine
intake manifold
YES
Refer to engine
manufacturer's
service manual
(See Notes H✩)
Restricted duct
NO
between air
cleaner and
turbocharger
YES
Remove restriction
or replace
turbocharger as
necessary
Engine malfunction
(fuel system
NO
component, valves
valve ring, ring
piston, etc.)
YES
Refer to engine
manufacturer's
service manual
EN0110608F300001
(See Notes D,F and G✩)
NO
NO
Leakage at engine
exhaust manifold
YES
Refer to engine
manufacturer's
service manual
(See Note H✩)
Restricted duct
NO
between
NO
compressor and
engine intake
YES
Remove restriction
or replace
turbocharger as
necessary
SHTS011060800002
EN08–3