1.1.5 High oil consumption 1.1.6 Engine overheating 1.1.7 White smoke coming out of engine exhaust 10 Check Causes Remedies Engine oil The oil type is not correct. Replace the engine oil The oil volume is too high. Adjust the oil level Oil seal and gasket The oil leaks from the oil seal and/or gasket. Replace the oil seal and/or gasket Air vent The air vent is blocked. Clean the air vent Intake valve and exhaust valve The valve stem and valve guide are worn. Replace intake valve, exhaust valve and valve guide Check Causes Remedies Cooling water The cooling water is insufficient. Supply enough cooling water Fan clutch The oil leaks from the fan clutch.
Replace the fan clutch Fan belt Loose or damaged fan belt results in slipping. Replace the fan belt Radiator The radiator cap is damaged or the radiator core is blocked. Replace the radiator cap or clean the radiator core Water pump The water pump is broken. Repair or replace the water pump Cylinder head and cylinder block Sealed cap Damaged cylinder head results in leakage of cooling water. Replace the sealed cap Thermostat The thermostat is broken. Replace the thermostat Cooling system The cooling system is clogged by foreign matters. Remove foreign matters from the cooling system Fuel injection timing Fuel injection timing is not correct.
Adjust the fuel injection timing Check Causes Remedies Cooling water The cooling water is insufficient. Supply enough cooling water Fuel There is water in the fuel system. Replace the fuel Fuel injection timing Fuel injection timing is delayed. Adjust the fuel injection timing Compression pressure The gasket of cylinder head is worn. The cylinder liner is worn. The piston ring is sticky. Replace relevant parts Intake valve and exhaust valve Valve oil seal The valve oil seal is worn. The valve stem and valve guide are worn. Replace valve oil seal, valve and valve guide