MTU 8 V 2000 M40A Operating Instructions Manual page 97

Engine does not reach nominal speed
Component Probable Cause
Fuel supply Fuel supply shut off
Fuel prefilter clogged
Fuel filter clogged
Air supply Air filter clogged
Fuel injection equip‐ Injector defective
ment
Injection pump defective
Engine wiring Defective
Engine Overloaded
Engine speed not steady
Component Probable Cause
Fuel injection equip‐ Injector defective
ment
Injection pump defective
Speed sensor Defective
Fuel system Not vented
ECU Defective
Charge-air temperature too high
Component Probable Cause
Engine coolant Incorrect coolant concentration
Intercooler Contaminated
Engine room Air-intake temperature too high
Charge-air pressure too low
Component Probable Cause
Air supply Air filter clogged
Intercooler Contaminated
Exhaust turbocharger Defective
Coolant leaks on intercooler
Component Probable Cause
Intercooler Leaking, major coolant discharge.
Task
Open shut-off valve before fuel prefilter
completely.
Replace (→ Page 139).
Replace (→ Page 133).
Check signal ring position of service in‐
dicator (→ Page 144).
Replace (→ Page 123).
Replace (→ Page 120).
Check (→ Page 172).
Contact Service.
Task
Replace (→ Page 123).
Replace (→ Page 119).
Contact Service.
Vent fuel system (→ Page 131).
Contact Service.
Task
Check (MTU test kit).
Contact Service.
Check fans
Check air supply / ventilation ducts.
Task
Check signal ring position of service in‐
dicator (→ Page 144).
Contact Service.
Contact Service.
Task
Contact Service.
MS150031/03E 2011-10 | Troubleshooting | 97