Table 5-2. Direct Support Troubleshooting - Continued
TEST OR INSPECTION
TRANSMISSION - Continued
HIGH STALL SPEED
Step 1. Check for low main pressure. Remove line from main pressure port on transmission and
install a tee and a 0 to 300 psi (0 to 2070 kPa) gauge. Start engine and allow to run at idle
speed. With parking brake applied, shift transmission into D (drive) and accelerate engine
to approximately 1200 rpm. Check for 140 to 175 psi (965 to 1206 kPa) main system
Step 2. If pressure is less than 140 psi (965 kPa). Refer to Part 9, Step 2.
Step 3. If pressure is less than 140 psi (965 kPa).
- Forward clutch is slipping, overhaul forward clutch.
- First clutch is slipping, overhaul first clutch.
- Fourth clutch is slipping (reverse), overhaul fourth clutch.
- Low clutch is slipping, overhaul low clutch.
LOW STALL SPEED
Do Step 1, then run stall check. If problem remains, go to
Step 1. Go to Engine troubleshooting, ENGINE FAILS TO DEVELOP FULL POWER.
housing (see para 6-49, 6-50 and 6-51).
Replace damaged torque converter parts (see para 6-49, 6-50 and 6-51).