MTU 8 V 2000 M51A Operating Instructions Manual page 150

Engine does not reach rated speed
Component
Fuel supply
Air supply
Fuel injection equip‐
ment
Engine wiring
Engine
Engine speed not steady
Component
Fuel injection equip‐
ment
Speed sensor
Fuel system
ECU
Charge-air temperature too high
Component
Engine coolant
Intercooler
Engine room
Charge-air pressure too low
Component
Air supply
Intercooler
Exhaust turbocharger Faulty
Coolant leaks at intercooler
Component
Intercooler
150 | Troubleshooting | MW15550/06E 2012-02
Cause
Fuel inlet closed off
Fuel prefilter clogged
Fuel easy-change fuel filter clogged
Air filter clogged
Injector faulty
Injection pump defective
Faulty
Overloaded
Cause
Injector faulty
Injection pump defective
Faulty
Air in fuel system
Faulty
Cause
Engine coolant treatment incorrect
Contaminated
Air-intake temperature too high
Cause
Air filter clogged
Contaminated
Cause
Leaking, major coolant discharge.
Measure
Completely open shutoff valve up‐
stream of fuel prefilter.
Replace (→ Page 201).
Replace (→ Page 195).
Check signal ring position of contami‐
nation indicator (→ Page 206).
Replace (→ Page 183).
Replace (→ Page 180).
Check (→ Page 234).
Contact Service.
Measure
Replace (→ Page 183).
Replace (→ Page 179).
Contact Service.
Vent fuel system (→ Page 193).
Contact Service.
Measure
Check (MTU test kit).
Contact Service.
Check fans
Check air inlet/outlet ducts.
Measure
Check signal ring position of contami‐
nation indicator (→ Page 206).
Contact Service.
Contact Service.
Measure
Contact Service.