Troubleshooting - MTU 12 V 4000 G23 Technical Documentation Manual

Troubleshooting

5 Troubleshooting
5.1 Troubleshooting
Engine does not turn when starter is actuated
Component
Battery
Starter
Engine wiring
Engine/generator control
system
ECU
Engine
Engine turns but does not fire
Component
Starter
Engine wiring
Fuel system
ECU
Engine fires unevenly
Component
Fuel injection equipment
Engine wiring
Fuel system
ECU
M015710/01E 07-02
Probable Cause
Low or defective
Cable connections defective
Engine wiring or starter defective
Defective
Secure seating of assemblies or
connectors not provided
Plug-in connections are loose
Running gear blocked (engine
cannot be barred manually)
Probable Cause
Poor rotation by starter: Battery
low or defective
Defective
Not vented
Defective
Probable Cause
Injector defective
Defective
Not vented
Defective
Task
Charge or replace (see manufacturer's
documentation).
Check if cable connections are
properly secured (see manufacturer's
documentation).
Check if cable connections are properly
secured, contact Service.
Check (→ Page 155).
Perform visual inspection (see
manufacturer's documentation).
Check plug-in connections (→ Page 157).
Contact Service.
Task
Charge or replace battery (see
manufacturer's documentation).
Check (→ Page 155).
Vent fuel system (→ Page 114).
Contact Service.
Task
Replace (→ Page 109).
Check (→ Page 155).
Vent fuel system (→ Page 114).
Contact Service.
71
© MTU