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TM 9-2320-364-20-2
2-1078
1. ENGINE OVERHEATS (WATER TEMP GAGE CONTINUOUSLY READS OVER
230F (110C) (CONT)).
6.
Replace thermostat(s)
(Para 6-7).
Verify repair, go to
Step 11 of this Fault.
YES
NO
Coolant hoses and clamps OK.
Radiator cooling fins OK.
Fan operates at low speed.
Fan operates at high speed.
Thermostat(s) faulty.
Water temperature gage faulty.
Cooling assembly faulty.
Water temperature switch faulty.
Water temperature sensor faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Thermostat test.
If thermostat(s) do not open,
coolant will not circulate through
radiator.
WARNING
Do thermostat(s) open
properly?
Read WARNING
on Page 2-1079
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