LGMG North America Inc. Maintenance Manual
15
Injector defective
Change
Coolant heat exchanger soiled
Clean
Defective cooling water pump
(torn or loose V-belt)
Check whether torn or loose
Low coolant
Fill up
Resistance in cooling system is
too high / flow volume too low
Check the cooling system
Fan / viscous coupling defective,
V-belt torn or loose
Check/replace/tension
Charge air line leaking
Check charge air line
Charge air cooler soiled
Check/clean
Air filter clogged / turbocharger
defective
Check/replace
Air filter maintenance switch /
maintenance indicator defective
Check/replace
Fan defective/V-rib belt torn or
loose
Check fan/V-belt, change if
necessary
Exhaust gas backpressure too
high
Check
Throttle valve defective
Check/replace
Coolant temperature transmitter Check/replace
Coolant thermostat defective
Check/replace
Coolant cover defective
Check/replace
Engine output is deficient
Lube oil level too high
Check lube oil level, if necessary
drain off.
Fuel suction temperature too
high
Check the system
Fuel quality does not comply
with operating manual
Change the fuel
Air filter clogged / turbocharger
defective
Check/replace
Air filter maintenance switch /
maintenance indicator defective
Check/replace
Fan defective/V-rib belt torn or
loose
Check fan/V-belt, change if
necessary
Charge air line leaking
Check charge air line
Charge air cooler soiled
Clean
Injection line leaks
Check injection line
Injector defective
Change
Throttle valve defective
Check/replace
Exhaust
gas
recirculation,
actuator defective
Check/replace
Exhaust gas backpressure too
high
Check/clean
Exhaust
gas
turbocharger
defective
Change
Engine performs poorly and
diagnostic lamp lights
Engine
electronics
reduce
performance
Please contact your LGMG
partner
Engine does not run on all
cylinders
Injection line leaks
Check injection line
Injector defective
Change
Compression pressure too low
Check compression pressure
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