Hino Motors HINO 155 series Workshop Manual page 329

Select the cylinder to deactivate
Injection is stopped when OK is selected.
SHTS021270300272
Can engine sound difference be identified?
YES
<One of the sounds A to D is always larger
than others or same as α. >
Replace the defective injector.
ENGINE (J05E)/TROUBLESHOOTING
4. Stop the fuel injection of the cylinder #1 to check the engine
sound. (Assume A as the sound.) -> After checking, stop the test.
HINT
Because the engine maintains the rotation condition by three-cyl-
inder fuel injection instead of four-cylinder fuel injection during
the test, the sound A becomes larger than α. (This is not abnor-
mal.)
5. As the cylinder #1, stop the fuel injection of the cylinders #2, #3,
and #4 in this order.
(Assume B, C, and D as the measured sounds respectively.)
HINT
• If sound abnormality is not clear, repeat the steps 4 and 5.
• If any of the sounds A to D is same as α, make sure to check for
communication abnormality.
NO
<No clear difference>
Go to inspection.
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