TM 5-3805-296-23-2
0102
Table 1. Engine Coolant Temperature Too High.
0102
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Engine Coolant
WARNING
Temperature Too High
At operating temperature, engine coolant is hot and under pressure.
Radiator and all lines to heaters or engine contain hot coolant or steam.
Any contact can cause severe burns. Allow engine and coolant to cool
before slowly removing filler cap to relieve cooling system pressure.
Engine must be stopped and radiator cap cool enough to touch with your
bare hand. Failure to follow this warning may result in injury or death to
personnel.
Test Step 1. Check for Active Event
Codes.
1. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
2. At MSD, check for active event
Event Code(s) Active Diagnose and
code(s) (WP 0008).
repair active event code(s) (WP 0005).
Proceed to Test Step 8.
No Event Code(s) Active Proceed to
Test Step 2.
Test Step 2. Perform Cooling System
Inspection.
Perform Cooling System Inspection
Cause of Malfunction Identified and
(WP 0166).
Repaired During Inspection
Proceed to Test Step 8.
Cause of Malfunction Not Identified
During Inspection Proceed to Test
Step 3.
Test Step 3. Inspect Coolant.
Inspect coolant for dirt and other
Coolant Ok Proceed to Test Step 4.
particulate contamination.
Coolant Dirty or Contaminated
Flush cooling system (WP 0256).
Proceed to Test Step 8.
Test Step 4. Inspect Aftercooler.
Inspect aftercooler for damage/
Aftercooler Restricted Clear
restrictions (WP 0167).
restrictions (WP 0230).
Proceed to Test Step 8.
Aftercooler Damaged Replace
aftercooler (WP 0230).
Proceed to Test Step 8.
Cause of Malfunction Not Identified
During Inspection Proceed to Test
Step 5.