TM 5-3810-306-20
TABLE 3-1. ORGANIZATIONAL TROUBLESHOOTING (CONTD)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
21. COOLANT TEMPERATURE ABOVE NORMAL
Step 1.
Radiator damaged.
a. Inspect radiator for corrosion and damaged fins and tubes. If OK, do Step 2.
b. Replace radiator. (Refer to page 7-9.)
Step 2.
Collapsed radiator hose.
a. Inspect upper and lower radiator hoses. If OK, do Step 3.
b. Replace radiator hose(s). (Refer to page 7-6.)
Step 3.
Fan shroud damaged or missing.
a. Inspect fan shroud for damage or loose attaching hardware. If OK, do Step 4.
b. Replace shroud and tighten attaching hardware. (Refer to page 7-9.)
Step 4.
Loose fan drive belt.
a. Inspect fan drive belt and tensioner. If OK, do Step 5.
b. Replace fan drive belt and tensioner. (Refer to pages 7-22 and 7-23.)
Step 5.
Defective temperature gauge.
a. Remove and test temperature gauge. If OK, do Step 6.
b. Replace temperature gauge. (Refer to page 8-17.)
Step 6.
Defective thermostat.
a. Remove and test thermostat. If OK, do Step 7.
b. Replace thermostat. (Refer to page 7-16.)
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