Hino Motors HINO 155 series Workshop Manual page 428

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3
Inspect the fuel line
Fuel filter
Pre fuel
filter
Was any failure found?
Repair or replace the faulty part.
Go to step 4 after repair or replacement.
4 Inspect the pre fuel filter
Was any failure found?
Replace the pre fuel filter.
Go to step 5 after replacement.
ENGINE (J05E)/TROUBLESHOOTING
1. Check that the fuel line has no leaks or clogging.
<Main inspection locations>
- Entry of foreign matter into the fuel tank
- Fuel hose breakage, collapsing, looseness
- High-pressure pipe breakage, collapsing, looseness
A return line from the fuel filter
Supply pump
Fuel tank
YES
1. Check that the pre fuel filter is not dirty or clogged.
YES
Common rail
Injector
Suction line
Positive pressure line
High pressure line
Return line
NO
Go to step 4.
NO
Go to step 5.
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