TRANSMISSION OVERHEATS (TRANS TEMP GAGE CONTINUOUSLY READS OVER 220F [104C]).

TM 9-2320-364-34-1

2-11. TRANSMISSION SYSTEM TROUBLESHOOTING (CONT).

6. TRANSMISSION OVERHEATS (TRANS TEMP GAGE CONTINUOUSLY READS

OVER 220F [104C]).

INITIAL SETUP

Tools and Special Tools

Personnel Required

Tool Kit, General Mechanic's

Two

(Item 240, Appendix F)

References

Pan, Drain 4 gal (Item 144, Appendix F)

TM 9-2320-364-10

Pressure Test Kit (Item 165, Appendix F)

Wrench Set, Socket 3/8 In. (Item 273, Appendix F)

Wrench, Torque (0-60 N.m) (Item 276, Appendix F)

Equipment Condition

Engine OFF, (TM 9-2320-364-10)

Materials/Parts

Parking brake applied, (TM 9-2320-364-10)

Sealing Compound (Item 53, Appendix B)

Wheels chocked, (TM 9-2320-364-10)

START

KNOWN INFO

TEST OPTIONS

WARNING

Read WARNING

Unit Troubleshooting tasks

Pressure test.

on Page 2-147

completed.

May or may not have ATEC

REASON FOR QUESTION

code.

Is lubrication pressure

Truck wiring OK.

Low lubrication pressure can

between 40 to 45 psi (276-310

cause transmission to overheat.

kPa)?

POSSIBLE PROBLEMS

Low lube pressure.

Internal oil filter faulty.

Internal oil filter pickup tube

loose.

Preformed packing faulty.

Go to Step 2 of this

Fault.

YES

Replace transmission

(Para 3-4).

Verify repair, go to

Step 3 of this Fault.

2-146