Daewoo Novus M2SEF - Engine and Related Parts; Engine Overheating; High Fuel Consumption; High Oil Consumption

4-115 TROUBLESHOOTING AND CORRECTIONS
1. ENGINE AND RELATED PARTS
•
Starter motor won't turn over or turns over
slowly.
• Engine overheating
Cause
Correction
Cause
Irregular action of contact
point of battery relay
Dead or weak battery
Battery terminals
disconnected, loosened,
or corroded
Poor ground connection
Too high oil viscosity
Correction
Place battery main switch
in "ON" position.
Recharge or replace
battery.
After trimming the
corrosion with a file,
connect terminals
securely.
Tighten connections.
Change with oil having
proper viscosity.
Radiator covered with
curtain
Lack of coolant
Dirts deposited in radiator
Rust and dirts in coolant
Fan belt slipping or
damaged
Remove curtain.
Replenish coolant.
Check for coolant leakage
and ensure radiator cap
should be closed tightly.
Clean radiator.
Clean radiator or change
coolant.
Adjust tension or change
belt.
• Starter motor turns over but engine won't
• High fuel consumption
Cause
Correction
start.
Cause Correction
Fuel leaks Check fuel system.
Re-tighten loose parts.
Fuel tank empty
Replenish Air cleaner element Clean or change air
restricted cleaner element.
Insufficient pre-heating Pre-heat again.
Tire underinflated Correct
Air in fuel injection lines Bleed
Engine overcooling Cover radiator with curtain.
Air cleaner element Clean or change element.
•
restricted
Engine stops easily at low rpm.
• High oil consumption
Cause
Correction
Cause
Too low idle rpm
Air cleaner element
restricted
Engine overcooling
Correction
Adjust idle rpm.
Clean or change air
cleaner element.
Cover radiator with
curtain.
Poor quality oil
Too high oil level
maintained
Oil leaks
Change with the specified
oil.
Maintain oil level as
specified.
Check lubrication system
and tighten loosened
parts.
• Engine lacks power.
Cause
Correction
Failure to observe oil
changing intervals
Follow the scheduled
intervals.
No parking brake release Operate parking brake
repeatedly.
Negligence in engine
warming up
Perform engine warming
up as instructed.
Air cleaner element
restricted
Brake pedal cramped
Clean or change element.
Adjust brake lining
• Low engine oil pressure
Cause
Correction
•
clearance.
Black exhaust smoke
Lack of engine oil
Oil leakage
Replenish
Inspect lubrication system
and retighten loosened
Cause
Air cleaner restricted
Correction
Clean or change element.
Improper oil viscosity
parts.
Change with oil having
proper viscosity.
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