ENGINE
L3560, L4060, L4760, L5060, L5460, L6060, WSM
1-S2
Either White or Blue
Exhaust Gas Is
Observed
Excessive engine oil Reduce to the
specified level
G-9
Piston ring and cylinder worn or stuck Repair or replace 1-S86,
1-S92
Oil Leaks Into
Exhaust Pipe or
Suction Pipe
Oil pipe clogged or damaged Replace or clean oil
pipe
1-S53
Piston ring seal of turbocharger damaged Replace turbocharger
assembly
1-S53
Either Black or Dark
Gray Exhaust Gas Is
Observed
Filter comp (DPF) clogged Replace 1-S20
Overload Decrease the load –
Low grade fuel used Use the specified fuel G-9
Fuel filter clogged Change G-32
Air cleaner clogged Clean or change G-28
Injector damaged Replace 1-S57
Deficient Output Engine's moving parts stuck Repair or replace –
Supply pump damaged Replace 1-S62
Injector damaged Replace 1-S57
Compression leak Examine
compression
pressure and repair
1-S12
Air cleaner clogged Clean or replace
element
G-28
Air leakage from compressor discharge side Replace turbocharger
assembly
1-S53
Breather hose or CCV clogged due to ice Melt the ice in
breather hose or
CCV, or Replace
1-S17,
1-S47
Excessive Lubricant
Oil Consumption
Piston ring's gap points in the same direction Shift ring gap
direction
1-S67
Oil ring worn or stuck Replace 1-S69
Piston ring groove worn out Replace piston and
piston ring
1-S67,
1-S69,
1-S87
Valve stem and guide worn out Replace 1-S77
Crankshaft bearing and crankpin bearing are
worn out
Replace –
Fuel Mixed Into
Lubricant Oil
Injector damaged Replace 1-S57
Oil dilution due to regeneration Change engine oil –
Water Mixed Into
Lubricant Oil
Head gasket damaged Replace 1-S59
Cylinder block or cylinder head flawed Replace 1-S59,
1-S92
Symptom Probable Cause Solution
Reference
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