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TM 9-2320-364-20-2
2-1090
2. ENGINE RUNS TOO COOL.
INITIAL SETUP
1.
Replace thermostat(s)
(Para 6-7).
Verify repair, go to
Step 3 of this Fault.
START
YES
NO
Nothing.
Thermostats faulty.
Water temperature gage faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
If thermostat is faulty (sticks
open), coolant will circulate
through radiator and engine will
run cool.
2-18. COOLING SYSTEM TROUBLESHOOTING (CONT).
Tools and Special Tools
Tool Kit, General Mechanic’s: Automotive
(Item 74, Appendix G)
STE/ICE-R (optional) (Item 3, Appendix G)
Multimeter (Item 44, Appendix G)
Equipment Condition
Engine OFF, (TM 9-2320-364-10)
Wheels chocked, (TM 9-2320-364-10)
Right side noise panel removed, (Para 17-26)
References
TM 9-2320-364-10
TM 9-4910-571-12&P
Do thermostats close
properly?
WARNING
Read WARNING
on Page 2-1091
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