f11. TRANSMISSION UNUSUALLY NOISY WHEN OPERATING
TM 9-2320-366-20-2
2-1644
Change 1
INITIAL SETUP
Equipment Conditions
Engine shut down (TM 9-2320-366-10-1).
Tools and Special Tools
Tool Kit, Genl Mech (Item 46, Appendix C)
Goggles, Industrial
(Item 15, Appendix C)
Wrench Set, Socket (Item 51, Appendix C)
Wrench, Torque, 0-200 lb-in. (Item 59, Appendix C)
Wrench, Torque, 0-175 lb ft (Item 58, Appendix C)
STE/ICE-R (Item 41, Appendix C)
YES
Go to step 6 of this fault
REASON FOR QUESTION
Some transmission faults will
only be audible when vehicle
is in motion.
Noise Check
TEST OPTIONS
KNOWN INFO
Transmission oil level OK.
Oil not contaminated.
Operation temperature normal.
No codes logged in ECU.
POSSIBLE PROBLEMS
Faulty PTO engagement.
Faulty scavenge pump
engagement.
Faulty oil pump.
Faulty flexplate.
Faulty propeller shafts
and / or universal joints.
Faulty transmission
transfer case.
Is transmission noise present
when vehicle is in neutral?
START
NO
Materials/Parts
Packing, Preformed (Item 197, Appendix G)
Adapter, Straight, Pipe to Tube (Item 1.2, Appendix D)
Adapter, Straight, Tube to Boss (Item 1.3, Appendix D)
Hose Assembly, Nonmetallic (Item 24.13, Appendix D)
References
TM 9-4910-571-12&P
1.