Suzuki 2006 SX4 Service Manual page 94

1A-50 Engine General Information and Diagnosis:
Condition
Engine noise – Piston,
ring and cylinder noise
NOTE
Before checking
mechanical noise, make
sure that:
• Specified spark plug is
used.
• Specified fuel is used.
Engine noise –
Connecting rod noise
NOTE
Before checking
mechanical noise, make
sure that:
• Specified spark plug is
used.
• Specified fuel is used.
Engine noise –
Crankshaft noise
NOTE
Before checking
mechanical noise, make
sure that:
• Specified spark plug is
used.
• Specified fuel is used.
Engine overheating
Possible cause
Worn piston, ring and cylinder bore
Worn piston, ring and cylinder bore
Worn connecting rod bearing
Worn crank pin
Loose connecting rod bolts
Low oil pressure
Low oil pressure
Worn main bearing
Worn crankshaft journal
Loose bearing cap bolts
Excessive crankshaft thrust play
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 cooling fan control
system
Dragging brakes
Slipping clutch (M/T model)
Blown cylinder head gasket
Air mixed in cooling system
Correction / Reference Item
"Pistons, Piston Rings, Connecting Rods and
Cylinders Inspection and Cleaning in Section
1D"
"Pistons, Piston Rings, Connecting Rods and
Cylinders Inspection and Cleaning in Section
1D"
"Pistons, Piston Rings, Connecting Rods and
Cylinders Inspection and Cleaning in Section
1D"
"Pistons, Piston Rings, Connecting Rods and
Cylinders Inspection and Cleaning in Section
1D"
"Pistons, Piston Rings, Connecting Rods and
Cylinders Removal and Installation in Section
1D"
Condition "Low oil pressure"
Condition "Low oil pressure"
"Main Bearings, Crankshaft and Cylinder Block
Inspection in Section 1D"
"Main Bearings, Crankshaft and Cylinder Block
Inspection in Section 1D"
"Main Bearings, Crankshaft and Cylinder Block
Removal and Installation in Section 1D"
"Main Bearings, Crankshaft and Cylinder Block
Inspection in Section 1D"
"Thermostat Inspection in Section 1F"
"Water Pump Inspection in Section 1F"
"Radiator On-Vehicle Inspection and Cleaning
in Section 1F"
"Engine Oil and Filter Change in Section 0B"
"Oil Pressure Check in Section 1E"
"Oil Pressure Check in Section 1E"
"Radiator Cooling Fan Low Speed Control
System Check" or "Radiator Cooling Fan High
Speed Control System Check"
"Brakes Symptom Diagnosis in Section 4A"
"Clutch System Symptom Diagnosis in Section
5C"
"Cylinder Head Inspection in Section 1D"