If the speed of your MTU Engine is not steady, it could be due to a defective injector, which would need replacement. It can also happen because the fuel system is not vented, in this case vent the fuel system. For other Defective causes, contact service.
A
Alex MyersAug 30, 2025
What causes MTU 20 V 4000 G23 to fire unevenly?
J
James VaughanAug 30, 2025
If the MTU Engine fires unevenly, it could be due to a defective injector, which would need to be replaced. It can also happen because the fuel system is not vented, in this case vent the fuel system. For other Defective causes, contact service.
R
Randy GarnerAug 29, 2025
Why is the exhaust gas blue from my MTU 20 V 4000 G23?
D
Dr. Victoria Dixon DDSAug 29, 2025
If the exhaust gas from your MTU Engine is blue, it could be caused by too much oil in the engine. Drain the engine oil to resolve this. Another potential cause is a contaminated oil separator of the crankcase breather, which would need to be replaced. Defective parts can also be the cause, contact service.
T
Trevor FowlerAug 27, 2025
What to do if MTU 20 V 4000 G23 does not reach nominal speed?
C
Cynthia WeberAug 27, 2025
If the MTU Engine does not reach nominal speed, it could be due to a clogged fuel prefilter or fuel filter, which should be replaced. A clogged air filter could also be the cause, so check the signal ring position of the service indicator. Additionally, a defective injector could be the problem, requiring replacement. Overloading the engine can also prevent it from reaching nominal speed, in this case, contact service.
M
Melissa JonesAug 27, 2025
Why is the exhaust gas white from my MTU Engine?
D
Daniel RodriguezAug 27, 2025
If the exhaust gas from your MTU Engine is white, it may be because the engine has not reached its operating temperature; run the engine until it warms up. Another possible cause is water in the fuel; in this case, check the fuel system on the fuel prefilter and drain the fuel prefilter. Leaking can also be the cause, contact service.
P
Patricia JordanAug 25, 2025
What to do if MTU 20 V 4000 G23 turns but does not fire?
G
grahamjacksonAug 25, 2025
If the MTU Engine turns but does not fire, the battery may be low or defective, leading to poor rotation by the starter. You should charge or replace the battery. It can also happen because the fuel system is not vented, in this case vent the fuel system. For other Defective causes, contact service.
D
Dean RileyAug 23, 2025
Why is the exhaust gas black from my MTU 20 V 4000 G23 Engine?
C
Charles RoseAug 23, 2025
If the exhaust gas from your MTU Engine is black, it could be due to a clogged air filter. Inspect the signal ring position of the service indicator. It could also be due to a defective injector, which would need replacement. Overloading the engine can also cause black exhaust gas, in this case you need to contact service.