TM 5-3895-369-14
ENGINE OPERATING TEMPERATURE TOO HIGH (CONT.).
KNOWN INFO
TEST OPTIONS
Coolant level-OK.
Drive belt inspection.
Radiator-OK.
REASON FOR QUESTION
A loose or worn drive belt will
cause water pump impeller to
rotate at a slower speed
reducing coolant flow.
P O S S I B L E PROBLEMS
Faulty drive belt.
Faulty fan hub or blades.
Faulty thermostat
Faulty water pump.
Faulty temperature gauge.
Faulty temperature sensor.
KNOWN INFO
TEST OPTIONS
Coolant level-OK.
Thermostat test.
Radiator-OK
Drive belt-OK.
REASON FOR QUESTION
An incorrect or malfunctioning
thermostat can cause engine to
run too hot.
POSSIBLE PROBLEMS
Faulty thermostat.
Faulty water pump.
Faulty temperature gauge.
Faulty temperature sensor.
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