29
Condition Probably cause Corrective action
Overheating Insufficient coolant. Replenish.
Loose fan belt. Adjust fan belt.
Worn or oiled fan belt. Replace.
Inoperative thermostat. Replace.
Worn water pump. Replace.
Clogged or leaky radiator. Flush, repair or replace.
Faulty radiator filter cap. Replace.
Air in cooling system. Retighten each part of cooling system.
Improper engine oil grade. Replace with proper grade oil.
Incorrect ignition timing. Adjust.
Clogged injector (lean mixture). Clean/Replace
Overcooling Inoperative thermostat. Replace.