Vehicle moves in N
Probable Cause(s)
  1. Excessive ATF
  2. Foreign material in separator plate orifice
  3. Relief valve defective
  4. 1st clutch defective
  5. 2nd clutch defective
  6. 3rd clutch defective
  7. 4th clutch defective
  8. 5th clutch defective
  9. Clearance between clutch end-plate and top disc incorrect
  10. Needle bearing seized, worn, or damaged
  11. Thrust washer seized, worn, or damaged
Notes
  • Check the ATF level, and drain the ATF if it is over-filled.
  • Check the 1st, 2nd, 3rd, 4th, and 5th clutch pressures.
  • Check the ATF strainer for debris. If the ATF strainer is clogged with particles of steel or aluminum, inspect the ATF pump. If the ATF pump is OK, find the damaged components that caused the debris. If no cause for contamination is found, replace the torque converter.
  • Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer and the retainer seal (1st, 2nd, and 3rd) for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage. If the discs are worn or damaged, replace them as a set. Inspect the clutch wave-plate height. If the height is out of tolerance, replace the wave-plate. If the discs and the plates are OK, adjust the clearance with the clutch end-plate.
  • Inspect the 1st clutch feed pipe. If the 1st clutch feed pipe is scored, replace the end cover.
  • Inspect the 3rd clutch feed pipe. If the 3rd clutch feed pipe is scored, replace it and the O-ring under the feed pipe guide.
  • Replace the secondary shaft if the bushing for the 1st or the 3rd clutch feed pipe is loose or damaged.
  • Inspect the 5th clutch feed pipe. If the 5th clutch feed pipe is scored, replace it and the O-ring under the feed pipe guide.
  • Replace the mainshaft if the bushing for the 5th clutch feed pipe is loose or damaged.