Coolant leaks at intercooler
Cause
Corrective action
Major coolant discharge at
charge-air cooler. Charge-air
cooler leaky.
u
Contact Service.
Black exhaust gas
Cause
Corrective action
Air filter clogged.
u
Check signal ring position of contamination indicator (→ Page 112).
Injector faulty.
u
Replace (→ Page 81).
Injection pump faulty.
u
Replace (→ Page 77).
Overload.
u
Contact Service.
Blue exhaust gas
Cause
Corrective action
Too much oil in engine.
u
Drain engine oil (→ Page 117).
Oil separator or oil preseparator
of crankcase breather clogged.
u
Replace (→ Page 71).
Exhaust turbocharger faulty.
u
Contact Service.
Cylinder head is faulty.
u
Contact Service.
Piston rings are defective.
u
Contact Service.
Cylinder liner defective.
u
Contact Service.
White exhaust gas
Cause
Corrective action
Engine is not at operating
temperature.
u
Run engine to reach operating temperature.
Water in fuel.
u
Check fuel system at fuel prefilter.
Drain fuel prefilter (→ Page 93).
Charge-air cooler leaky.
u
Contact Service.
54 | Troubleshooting | MW15409/04E 2015-08
TIM-ID: 0000042073 - 001
Summary of Contents for 12V2000M91
Page 1: ...Operating Instructions Diesel Engine 12V2000M91 16V2000M91 MW15409 04E...
Page 23: ...MW15409 04E 2015 08 General Information 23 TIM ID 0000002178 006...
Page 24: ...Lube oil system covers 24 General Information MW15409 04E 2015 08 TIM ID 0000002178 006...
Page 25: ...MW15409 04E 2015 08 General Information 25 TIM ID 0000002178 006...
