Engine does not reach nominal speed
Cause Corrective action
Fuel prefilter clogged u Replace (→ Page 126).
Easy-change fuel filter clogged u Replace (→ Page 116).
Air supply: Air filter clogged u Check signal ring position of service indicator (→ Page 132).
Fuel injection: Injector defective u Replace (→ Page 112).
Engine cabling defective u Check (→ Page 160).
Engine: Overload u Contact Service.
Engine speed not steady
Cause Corrective action
Fuel injection: Injector defective u Replace (→ Page 112).
Speed transmitter defective u Contact Service.
Air in fuel system u Vent fuel system (→ Page 115).
Engine Control Unit defective u Contact Service.
Charge-air temperature too high
Cause Corrective action
Incorrect coolant concentration u Check (MTU test kit).
Charge-air cooler clogged u Contact Service.
Engine room: Air-intake
temperature too high
u Check fans and air supply/ventilation ducts.
Charge-air pressure too low
Cause Corrective action
Air supply: Air filter clogged u Check signal ring position of service indicator (→ Page 132).
Charge-air cooler contaminated u Contact Service.
Exhaust turbocharger defective u Contact Service.
Coolant leaks at charge-air cooler
Cause Corrective action
Charge-air cooler leaking, major
coolant discharge
u Contact Service.
Black exhaust gas
Cause Corrective action
Air supply: Air filter clogged u Check signal ring position of service indicator (→ Page 132).
Fuel injection: Injector defective u Replace (→ Page 112).
Engine: Overload u Contact Service.
64 | Troubleshooting | M015650/06E 2018-05
TIM-ID: 0000044001 - 002
To Next Page
Loading...
