Suzuki Swift Sport 2004 Service & Repair Manual page 93

Condition
Poor gasoline mileage
Excessive engine oil
consumption – Oil
leakage
Excessive engine oil
consumption – Oil
entering combustion
chamber
Possible cause
Leaks or loose connection of high-
tension cord
Faulty spark plug (improper gap, heavy
deposits and burned electrodes, etc.)
Malfunctioning EGR valve
High idle speed
Poor performance of ECT sensor or
MAF sensor
Faulty electric throttle body assembly
Faulty APP sensor assembly
Faulty fuel injector(s)
Faulty ECM
Low compression
Poor valve seating
Dragging brakes
Slipping clutch
Thermostat out of order
Improper tire pressure
Camshaft position control (VVT) system
out of order
Blown cylinder head gasket
Leaky camshaft oil seals
Sticky piston ring
Worn piston and cylinder
Worn piston ring groove and ring
Improper location of piston ring gap
Worn or damaged valve stem seal
Worn valve stem
Engine General Information and Diagnosis:
Correction / Reference Item
"High-Tension Cord Removal and Installation
in Section 1H"
"Spark Plug Inspection in Section 1H"
"EGR Valve Inspection in Section 1B"
Condition "Improper engine idling or engine
fails to idle"
"ECT Sensor Inspection in Section 1C" or
"MAF and IAT Sensor Inspection in Section
1C"
"Electric Throttle Body Assembly On-Vehicle
Inspection in Section 1C"
"APP Sensor Assembly Inspection in Section
1C"
"Fuel Injector Circuit Check"
"Compression Check in Section 1D"
"Valves and Valve Guides Inspection in
Section 1D"
Condition "Dragging brakes" in "Brakes
Symptom Diagnosis in Section 4A"
Condition "Slipping clutch" in "Clutch System
Symptom Diagnosis in Section 5C"
"Thermostat Inspection in Section 1F"
"Tires Description in Section 2D"
"Oil Control Valve Inspection in Section 1D"
"Cylinder Head Inspection in Section 1D"
"Camshaft, Tappet and Shim Inspection in
Section 1D"
"Cylinders, Pistons and Piston Rings
Inspection in Section 1D"
"Cylinders, Pistons and Piston Rings
Inspection in Section 1D"
"Cylinders, Pistons and Piston Rings
Inspection in Section 1D"
"Pistons, Piston Rings, Connecting Rods and
Cylinders Disassembly and Assembly in
Section 1D"
"Valves and Valve Guides Inspection in
Section 1D"
"Valves and Valve Guides Inspection in
Section 1D"
1A-43