TM-9-2320-280-34
TRUCK, UTILITY: M998 SERIES
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
JANUARY 1996
TM-9-2320-280-34 - Page 38 of 1258
TM 9-2320-280-34
Table 2-1. Mechanical Troubleshooting (Cont ’d)
MALFUNCTION
TEST OR INSPECTION
TORQUE CONVERTER CLUTCH SOLENOID
With the transmission electrical connector disconnected, measure the resistance
between pins S and E. Resistance should be between 10 to 14 ohms.
LOW
HIGH
Check for:
- High resistance of solenoid; replace.
- Wires and connectors for breaks or bad connections; repair or replace.
Check for:
- Low resistance of solenoid; replace.
- Short in wires or connectors; repair or replace.
TRANSMISSION FLUID TEMPERATURE SENSOR
With the transmission electrical connector disconnected, measure the resistance
between pins M and L. The resistance should be high at low temperatures and
low at high temperatures. At room temperature the resistance should be
between 2500 and 5000 ohms.
LOW
HIGH
Check for:
- High resistance of solenoid; replace.
@ 0 °C (32'F) > 11,000 ohms
@ 20 °C (680F) > 4,100 ohms
@ 40 °C (104 °F) > 1,700 ohms
- Opens, breaks, and bad connections in the wires and connectors; repair or
replace.
Check for:
- Low resistance of solenoid; replace.
O 00C (320F) > 7,800 ohms
@ 20 °C (68 °F) > 2,900 ohms
@ 40 °C (104 °F) > 1,200 ohms
- Shorts between wires or ground in the wires and connectors; repair
or replace.
2-12.2
Back to Top
