ABNORMAL COOLANT TEMPERATURES
Probable Causes:
Restricted cooling system
passages
Restricted radiator core passages
Slipping fan drive belts
Faulty temperature-controlled fan
Obstruction in front of radiator or
intercooler
Low coolant level
Damaged hoses
Faulty thermostats
Faulty water pump
Faulty radiator pressure cap
Air in coolant
Thermostats not fully closed
Leakage around thermostat seals
Faulty temperature-controlled fan
Above Normal
Below Normal
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