TM 5-3810-306-20
TABLE 3-1. ORGANIZATIONAL TROUBLESHOOTING (CONT’D)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 4.
Cracked or porous cylinder head.
a. Check cylinder head for leaks.
b. Refer to Direct Support Maintenance.
23. COOLANT TEMPERATURE BELOW NORMAL
Step 1.
Defective temperature sensor.
a. Remove and test temperature sensor. If OK, do Step 2.
b. Replace temperature sensor. (Refer to page 8-53.)
Step 2.
Defective temperature gauge.
a. Using STE/ICE, perform VTM test to engine coolant temp-dash gauge. If OK, do Step 3.
b. If necessary, remove and test temperature gauge. If OK, do Step 3.
c. Replace temperature gauge. (Refer to page 8-17.)
Step 3.
Defective thermostat.
a. Remove and test thermostat.
b. Replace thermostat. (Refer to page 7-16.)
24. CONTAMINATED COOLANT
Step 1.
Rusty coolant, operation without correct mixture of antifreeze and water.
a. Drain and flush cooling system.
b. Fill with correct mixture of antifreeze and water. (Refer to TM 5-3810-306-10.)
c. Review coolant change interval.
3-21
