
122
MAINTENANCE
Coolant - overheating
Cause
Solution
Coolant level not correct (low)
Check the level
Radiator grille obstructed
Clean the radiator grille
Air flow to radiator insufficient or obstructed
Check/repair the fan
Belt tension insufficient
Check the tension
Radiator tube crushed, obstructed or cracked
Check/replace the defective tube
Oil level not correct (high)
Check the level
Radiator cap defective
Replace the radiator cap
Excessive concentration of anti-freeze
Drain part of the circuit and fill with distilled water
Temperature sensor defective
Check the accuracy of the sensor
Thermostat faulty or missing
Check/replace the thermostat
Coolant pump faulty
Check/replace the pump
Passage of liquid through the radiator, head or
engine block obstructed
Wash the plant with distilled water and fill with fresh coolant
Coolant
–
not at required temperature
Cause
Solution
Temperature sensor defective
Check the accuracy of the sensor
Thermostat defective (blocked open)
Check/replace the thermostat
Liquid not circulating near the temperature sensor Check/clean the liquid passages
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