TM 9-2320-279-34-1
Troubleshooting Malfunctions (Cont)
2-7. TROUBLESHOOTING INSTRUCTIONS (CONT).
Table 2-3. Troubleshooting (Cont)
Malfunction
Test or Inspection
Corrective Action
TRANSMISSION (CONT)
1.
TRANSMISSION OIL TEMPERATURE GAGE STAYS OVER 250 °F (121 °C).
Step 1. Check for low lubrication oil pressure. Remove oil line from transmission lube port and
install tee and 0 to 100 psi (0 to 690 kPa) gage. Start engine and increase speed to
approximately 1900 rpm. Check for 25 to 30 psi (172 to 207 kPa) lube system pressure.
If pressure is 25 to 30 psi (172 to 207 kPa), disassemble transmission and check for
damaged torque converter (para 7-7, 7-8).
Step 2. Check for low main pressure. Remove oil line from main pressure port on transmission and
install tee and 0 to 300 psi (0 to 2 070 kPa) gage. Start engine and allow to run at idle speed.
With parking brake applied, shift transmission into DRIVE. Check for 105 to 140 psi (725 to
965 kPa) main system pressure.
If pressure is 105 to 140 psi (725 to 965 kPa), disassemble transmission and inspect
lubrication pressure regulator and converter bypass valve for damage (para 7-9,
7-20).
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