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Valvoline Product


Troubleshooting Guide for Engine Oils

Engine Over Heating

Cause

Remedy

»
Too little water in radiator
» Leaky Valves/Less Valve Clearance
» Coolant leakage from Hoses, Water Pump Radiator etc
» Contaminated Cooling System leading to Radiator / Water Passage Choking
» Wrong Radiator
» Water pump defective
» Air passage through radiator blocked
» Thermostat opens too late/ Stuck / Bypass Temperature too high
» Dribbling Injectors
» Excessive Fuel Delivery
» Retarded beginning of fuel delivery
» Cylinder Head Gasket Leaky
» Hairline Crack in Cylinder Head / Bloc
» Clutch Slipping, Brake Binding
» Insufficient Oil Level in crank case
»
Refill water with engine running
» Grind valve seals /Adjust the clearance
» Rectify leakage / Use pressure cap
» Clean cooling system
» Use recommended radiator
» Rectify / Replace water pump
» Check / thermostat and replace if required
» Rectify / Replace Injection nozzles
» Check / Adjust Fuel Injection Pump Delivery
» Adjust Timing
» Replace cylinder head block
» Remove cylinder head / Block pressure test warm condition
and replace if necessary
» Adjust /  Check / Clutch and Brake
» Top-up Oil to required level.
Engine Over Heating

Cause

Remedy

»
Excessive humid air
» Water leakage in air inlet
» Cylinder head gasket blown
» Cylinder block cracked in bores
» Cylinder head cracked
»
Not Available
» Rectify
» Replace Gasket
» Replace Block
» Replace Cylinder head if cracked