Suzuki Wagon R Manual page 364

Condition
Overheating D Inoperative thermostat
D Poor water pump performance
D Clogged or leaky radiator
D Improper engine oil grade
D Clogged oil filter or oil strainer
D Poor oil pump performance
D Faulty radiator fan control system
D Dragging brakes
D Slipping clutch
D Blown cylinder head gasket
Poor gasoline Ignition system out of order
mileage D Leaks or loose connection of high-tension cord
D Faulty spark plug (improper gap, heavy deposits
Engine and emission control system out of
order
D Malfunctioning EGR valve (if equipped)
D High idle speed
D Poor performance of TP sensor, ECT sensor or
D Faulty EGR valve (if equipped)
D Faulty fuel injector(s)
D Faulty ECM
Low compression
Others
D Poor valve seating
D Dragging brakes
D Slipping clutch
D Thermostat out of order
D Improper tire pressure
Excessive engine Oil leakage
oil consumption
D Blown cylinder head gasket
D Leaky camshaft oil seals
Oil entering combustion chamber
D Sticky piston ring
D Worn piston and cylinder
D Worn piston ring groove and ring
D Improper location of piston ring gap
D Worn or damaged valve stem seal
D Worn valve stem
Possible Cause
and burned electrodes, etc.)
MAP sensor
ENGINE DIAGNOSIS 6-25
Referring Item
Thermostat 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 6A1
Oil pressure check in Section 6A1
Radiator fan control system in
Section 6E
Trouble diagnosis in Section 5
Trouble diagnosis in Section 7C
Cylinder head in Section 6A1
High-tension cords in Section 6F1
Spark plugs in Section 6F1
EGR system in Section 6E
Refer to item "Improper engine
idle speed" previously outlined
TP sensor, ECT sensor or MAP
sensor in Section 6E
EGR system in Section 6E
Diagnostic Flow Table B-1
Previously outlined
Valves inspection in Section 6A1
Trouble diagnosis in Section 5
Trouble diagnosis in Section 7C
Thermostat in Section 6B
Refer to Section 3F
Cylinder head in Section 6A1
Camshaft in Section 6A1
Piston cleaning in Section 6A1
Pistons and cylinders inspection
in Section 6A1
Pistons inspection in Section 6A1
Pistons assembly in Section 6A1
Valves removal and installation in
Section 6A1
Valves inspection in Section 6A1