S-7
03-M-DI Series, WSM
DIESEL ENGINE
W1014322
Symptom
Probable Cause
Solution
Reference
Page
Low Oil Pressure
• Engine oil insufficient
• Oil strainer clogged
• Relief valve stuck with dirt
• Relief valve spring weaken or broken
• Excessive oil clearance of crankshaft bearing
• Excessive oil clearance of crankpin bearing
• Excessive oil clearance of rocker arm
• Oil passage clogged
• Different type of oil
• Oil pump defective
Replenish
Clean
Clean
Replace
Replace
Replace
Replace
Clean
Use specified type of
oil
Repair or replace
S-19
S-55
–
–
S-60, 75,
76, 77, 78
S-56, 74
S-45, 65
–
S-23
S-54, 81,
82
High Oil Pressure
• Different type of oil
• Relief valve defective
Use specified type of
oil
Replace
S-23
–
Engine Overheated
• Engine oil insufficient
• Fan belt broken or elongated
• Coolant insufficient
• Radiator net and radiator fin clogged with
dust
• Inside of radiator corroded
• Coolant flow route corroded
• Radiator cap defective
• Overload running
• Head gasket defective
• Incorrect injection timing
• Unsuitable fuel used
Replenish
Replace or adjust
Replenish
Clean
Clean or replace
Clean or replace
Replace
Loosen load
Replace
Adjust
Use specified fuel
S-19
S-22, 28
S-19
–
S-26
–
S-84
–
S-46, 47
S-86
–
Battery Quickly
Discharge
• Battery electrolyte insufficient
• Fan belt slips
• Wiring disconnected
• Rectifier defective
• Alternator defective
• Battery defective
Replenish distilled
water and charge
Adjust belt tension or
change
Connect
Replace
Replace
Change
S-21, 29
S-22, 28
S-100
S-93, 99
S-93
–
KiSC issued 10, 2009 A
