Engine does not reach nominal speed
Cause
Corrective action
Fuel prefilter clogged
u
Replace (→ manufacturer's documentation)
Fuel filter clogged
u
Replace(→ Page 96)
Additional fuel filter clogged
u
Replace (→ Page 97)
Air filter clogged
u
Check, replace if necessary (→ manufacturer's documentation)
Injector defective
u
Check, replace if necessary (→ Page 90)
Engine cabling defective
u
Check (→ Page 160)
Engine: Overload
u
Contact Service
Engine speed not steady
Cause
Corrective action
Injector defective
u
Check, replace if necessary (→ Page 90)
Speed transmitter defective
u
Contact Service
Air in fuel system
u
Vent fuel system (→ Page 95)
Engine governor defective
u
Contact Service
Charge-air temperature too high
Cause
Corrective action
Incorrect coolant concentration
u
Check (→ MTU test kit)
Intercooler dirty
u
Contact Service
Engine room: Air-intake
temperature too high
u
Check fans and air supply/exhaust ducts.
Charge-air pressure too low
Cause
Corrective action
Air filter clogged
u
Check, clean if necessary (→ manufacturer's documentation)
Intercooler dirty
u
Contact Service
Exhaust turbocharger defective
u
Contact Service
Coolant discharge at intercooler
Cause
Corrective action
Intercooler: Leaking, major
coolant discharge
u
Contact Service
MS150096/03E 2015-04
| Troubleshooting | 43
TIM-ID: 0000055274 - 002
