Suzuki Liana RH418 Supplementary Service Manual page 42

1A-29 Engine General Information and Diagnosis:
Condition
Engine overheating
Possible cause
Inoperative thermostat
Poor water pump performance
Clogged or leaky radiator
Improper engine oil grade
Clogged oil filter or oil strainer
Poor oil pump performance
Faulty radiator fan control system
Dragging brakes
Slipping clutch
Blown cylinder head gasket
Correction / Reference Item
"Thermostat Inspection in Section 1F in related
manual"
"Water Pump Inspection in Section 1F in
related manual"
"Radiator On-Vehicle Inspection and Cleaning
in Section 1F in related manual" or
"Engine Oil and Filter Change in Section 0B in
related manual"
"Engine Oil and Filter Change in Section 0B in
related manual" or "Oil Pan and Oil Pump
Strainer Cleaning in Section 1E in related
manual"
"Oil Pressure Check in Section 1E in related
manual"
"Radiator Fan Control System Check"
Condition "Dragging brakes" in "Brakes
Symptom Diagnosis in Section 4A in related
manual".
Condition "Slipping clutch" in "Clutch System
Symptom Diagnosis in Section 5C in related
manual".
Replace.