022-00028AE Operation and Maintenance Manual
Troubleshooting 6-3
Coolant temp, warning light
turns "ON."
Low engine coolant level.
Add coolant.
Loose/slipping/broken fan belt.
Adjust or replace belt.
Clogging radiator fins.
Clean.
Scale or mineral build up inside
radiator.
Flush or professionally clean.
Defective alarm switch (gauge is
in green).
Contact your Daewoo dealer.
Low water pump flow.
Thermostat stuck or missing.
Engine does not start when the
starter motor is turning. (Also
see ELECTRICAL
TROUBLESHOOTING.)
Fuel filter element clogging.
Replace fuel filter.
Starter motor speed too low.
Booster Battery may be used.
Defective engine shutoff
solenoid.
Contact your Daewoo dealer.
Fuel pump failure.
Incorrect fuel injection timing.
Compression pressure too low.
Defective injectors.
Unstable (rough) idling.
Air in fuel lines.
Tighten fuel connections and
filter.
Fuel filter element clogging.
Replace fuel filter.
Fuel pump failure.
Contact your Daewoo dealer.
Incorrect fuel injection timing.
Insufficient power.
Air cleaner element clogging.
Clean or replace element.
Fuel filer element clogging.
Replace fuel filter.
Throttle linkage adjustment
wrong.
Check and adjust linkage.
Engine oil level too high.
Check dipstick and correct level.
Incorrect valve clearance.
Contact your Daewoo dealer.
Piston ring wear.
Defective injectors.
Fuel pump failure.
Problem
Cause
Remedy