Daewoo MATIZ - Page 16

1A–6 GENERAL ENGINE INFORMATION
DAEWOO M-150 BL2
GENERAL DIAGNOSIS (Cont’d)
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Condition
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Probable cause
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Correction
Hard Starting (With Others
D Broken timing belt. D Replace the belt.
normal cranking)
D Malfunction of Positive
Crankcase Ventilation (PCV)
valve.
D Check and replace Positive
Crankcase Ventilation (PCV)
valve if needed.
D Loosening, damage or
leakage of the vacuum hose.
D Connect the hose correctly
or replace it.
D Leakage of intake system. D Replace intake system.
Lack of Engine Power
Decline of
Compression
Pressure
D Refer to “Page 1A–5”. D Refer to “Page 1A–5”.
Malfunction of
D Improper ignition timing. D Adjust the ignition timing.
Ignition System
D Faulty spark plug. D Adjust or replace the spark
plug.
D Malfunction of the distributor. D Repair or replace the
distributor. Check the rotor.
D Electric leakage or poor
connection of the high
tension cable.
D Connect the cable correctly
or replace it.
Malfunction of
D Clogged fuel pipe. D Clean the pipe.
Fuel System
D Clogged or contaminated
fuel filter.
D Replace the filter.
Others
D Clogged exhaust system. D Check and repair the
system.
D Clogged or contaminated air
cleaner element.
D Clean or replace the air
cleaner element.
D Leak of the intake manifold
gasket.
D Replace the gasket.
D Dragging brakes. D Repair or replace the
brakes.
D Slipping clutch. D Adjust or replace the clutch.
Rough Engine Idling
Decline of
Compression
Pressure
D Refer to “Page 1A–5”. D Refer to “Page 1A–5”.
Malfunction of
D Clogged fuel pipe. D Clean the pipe.
Fuel System
D Clogged or contaminated
fuel filter.
D Replace the filter.
D Malfunction of the fuel
pressure regulator.
D Replace the regulator.
Malfunction of
Ignition System
D Malfunction of the spark
plug.
D Adjust or replace the spark
plug.
D Electric leakage or poor
connection of the high
tension cable.
D Connect the cable correctly
or replace it.
D Worn distributor cap terminal
or accumulated carbon in
the distributor cap.
D Replace or clean the
distributor cap.