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TROUBLESHOOTING
Problem
Exhaust gas occasionally turns
black
Combustion noise occasionally
makes breathing sound
Abnormal noise generated
(combustion or mechanical)
3 - 178
Main causes
Clogged air cleaner element
Defective injector
Defective compression
Defective turbocharger
Defective nozzle
Low grade fuel being used
Overheating
Damage inside muffler
Excessive valve clearance
Remedy
Clean or replace, see WHEN
REQUIRED
( Replace injector)
( See defective compression
above)
( Clean or replace turbocharger)
( Replace nozzle)
Change to specified fuel
Refer to "Water temperature
gauge is in red range" as above
( Replace muffler)
( Adjust valve clearance)
OPERATION
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