Blue Or Black Smoke - Isuzu NHR 4J Series Workshop Manual

00 – 22 SERVICE INFORMATION
Checkpoint
Air cleaner or intercooler
OK OK
Turbocharger oil seal
OK
Turbocharger oil drain pipe
OK
Air breather
OK
Boost compensator
(Injection pump)
OK
Compressor wheel
OK
Turbine wheel
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2) BLUE OR BLACK SMOKE

Trouble Cause
NG
Restricted
NG
Leakage
NG
Restricted
NG
Restricted
NG
Defective
NG
Impact damage
NG
Impact damage
Countermeasure
Clean, repair, or replace
Replace
Repair or replace
Clean
Repair or replace
Replace
Replace