TM 5-3895-370-14&P
Table 4-4. Unit Troubleshooting Procedures - CONT.
Malfunction
Test or inspection
Corrective action
ENGINE (CONT)
10. ENGINE OPERATING TEMPERATURE TOO HIGH.
Step 1. Inspect radiator for leaks and obvious damage.
If radiator is damaged, replace radiator (para 4-53).
If radiator is not damaged, go to step 2.
Step 2. Inspect drive belt for damage.
If drive belt is damaged, replace drive belt (para 4-61).
If drive belt is not damaged, go to step 3.
Step 3. Remove and test thermostat (para 4-55).
If thermostat does not pass test, replace thermostat.
If thermostat passes test, go to step 4.
Step 4. Check water pump for unusual noise during operation.
If water pump makes unusual noise, replace water pump (para 4-58).
If water pump does not make unusual noise, go to step 5.
Step 5. Remove temperature sensor (para 4-148) and test sensor according to TM 750-254.
If temperature sensor fails test, replace temperature sensor and gage (para 4-148).
If temperature sensor passes test, go to step 6.
Step 6. Check continuity across temperature gage.
If there is no continuity, replace temperature gage and sensor (para 4-148).
If there is continuity, fault not corrected. Notify supervisor.
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