Suzuki GA413, Service Manual

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6-12 ENGINE
Condition Possible Cause Reference Item
Overheating Inoperative thermostat
Faulty radiator fan motor or its circuit
Loose or slip water pump belt
Poor water pump performance
Clogged or leaky radiator
Improper engine oil grade
Clogged oil filter or oil strainer
Poor oil pump performance
Dragging brakes
Slipping clutch
Blown cylinder head gasket
Thermostat in Section 6B.
Diag. Flow Table B-8 in Section 6E.
Water pump belt check in Section 6B.
Water pump in Section 6B.
Radiator in Section 6B.
Engine oil and oil filter change in
Section 0B.
Oil pressure check in Section 6A.
Oil pressure check in Section 6A.
Diagnosis in Section 5.
Diagnosis in Section 7C.
Cylinder head inspection in Section
6A.
Poor gasoline
mileage
Ignition system out of order.
Faulty ignition coil or high-tension cord
Engine and emission control system out
of order.
Fuel pressure out of specification
Faulty TP sensor, ECT sensor or MAP
sensor
Faulty EGR system (if equipped)
Faulty injector
Faulty ECM
Low compression
Others
Poor valve seating
Dragging brakes
Slipping clutch
Thermostat out of order
Improper tire pressure
Diagnosis in Section 6F.
Diag. Flow Table B-3 in Section 6E.
TP sensor, ECT sensor or MAP
sensor in Section 6E.
Diag. Flow Table B-6 in Section 6E.
Fuel injector injection volume inspec-
tion in Section 6E.
Inspection of ECM and its circuit in
Section 6E.
Previously outlined.
Valves inspection in Section 6A.
Diagnosis in Section 5.
Diagnosis in Section 7C.
Thermostat in Section 6B.