11-6
Chapter 11 TROUBLESHOOTING
Fuel consumption is high
Table 11-6 Fuel consumption is high
Cause Remedies
Fuel system
Faulty fuel injection nozzle Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Faulty fuel injection timing
Check fuel injection pump couplings.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Improper fuel property Use appropriate fuel. (Refer to P4-1)
Fuel leakage in fuel pipes and
injection pipes.
Check faults and retighten fuel pipes and injection pipes.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Cooling
system
Overcooled
Check radiator. (Refer to P8-15)
Check control system.
Thermostat - Inspect
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Inlet and
exhaust
systems
Insufficient amount of air
Check turbocharger. (Refer to P8-16)
Clean, inspect and replace air cleaner element. (Refer to P8-
17)
Check intake air pressure and leakage of intake air.
Check intake air temperature and ventilation device.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Increase resistance of exhaust air.
Check turbocharger. (Refer to P8-16)
Check exhaust pipes and silencer.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Basic engine
Low compression pressure Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Faulty valve timing Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Rapid wear of sliding parts Consult a dealer of Mitsubishi Heavy Industries, Ltd.
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