TEST OR INSPECTION
ENGINE COOLANT OPERATING TEMPERATURE ABOVE NORMAL
Check coolant level.
Check operation of vehicle cooling system (Refer to appropriate vehicle type-20
Check for collapsed, cracked, or disintegrated hoses.
Check thermostats for operation. Remove thermostat and test (Refer to Para 4-8).
Check for combustion gases in the cooling system.
a. Remove radiator filler cap.
Protective fan screens must be Installed prior to doing
maintenance In the engine compartment when engine
is running or when engine is in ground hop mode.
Contact with rotating fan can cause injury (reference
Operate engine at idle.
Check radiator for bubbles in coolant which indicates a damaged cylinder
Install radiator cap.
END OF TEST
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