ARMY TM 9-6115-670-14&P
4-25
12. ENGINE COOLANT TEMPERATURE TOO LOW.
STEP 1. Check for proper antifreeze/water mixture ratio in radiator overflow tank and in radiator.
a. If the antifreeze/water mixture ratio is incorrect, add water or antifreeze as required.
b. If the antifreeze/water mixture ratio is correct, proceed to step 2.
STEP 2. Check for defective thermostat (para 4.22.).
a. If thermostat is defective, replace thermostat.
b. If thermostat is functioning properly, proceed to step 3.
STEP 3. Check for defective temperature sender (para 4.25.).
a. If the temperature sender is defective, replace sender.
b. If the temperature sender is functioning properly, notify next higher level maintenance.
