Daewoo MATIZ - Diagnoctic Information and Procedure 1 A-5; General Diagnosis

GENERAL ENGINE INFORMATION 1A–5
DAEWOO M-150 BL2
DIAGNOSTIC INFORMATION PROCEDURE
GENERAL DIAGNOSIS
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Condition
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Probable cause
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Correction
Hard Starting (With Malfunction of
D Faulty fuse. D Replace the fuse.
normal cranking)
Ignition System
D Faulty spark plug. D Clean, adjust the plug gap or
replace.
D Electric leakage at the high
tension cable.
D Replace the cable.
D Poor connection of the high
tension cable or lead wires.
D Replace the cable or wires.
D Worn distributor cap or
accumulated carbon in the
distributor cap.
D Replace or clean the
distributor cap.
D Damaged distributor rotor or
cap.
D Replace the rotor or the cap.
D Improper ignition timing. D Adjust the ignition timing.
D Faulty ignition coil. D Replace the ignition coil.
Malfunction of Fuel
D Lock of fuel in the fuel tank. D Feed the fuel.
System
D Dirty or clogged fuel filter. D Replace the filter.
D Clogged fuel pipe. D Clean the fuel pipe.
D Malfunction of the fuel pump. D Replace the fuel pump.
D Malfunction of the fuel
injector.
D Replace the injector.
D The foreign material in the
fuel tank.
D Clean the fuel tank.
Decline of
Compression
D Poor tightening spark plug. D Tighten to the specified
torque.
Pressure
D Cracked cylinder head
gasket.
D Replace the gasket.
D Inadequate the valve
clearance.
D Adjust the clearance.
D Leakage of the valve
clearance.
D Repair the valve.
D Interference of the valve
stem.
D Replace the valve or the
valve guide.
D Low elasticity or damage of
the valve spring.
D Replace the valve spring.
D Abnormal interference of
pistons and cylinders.
D Replace the piston ring.
D Excessive wear of pistons,
rings, or cylinders.
D Replace the ring or the
piston and boring or replace
the cylinder.