Excessive shock or flares on 2-3 upshift or 3-2 downshift
Probable Cause(s)
  1. A/T clutch pressure control solenoid valve B defective
  2. A/T clutch pressure control solenoid valve C defective
  3. 3rd clutch transmission fluid pressure switch defective
  4. Foreign material in separator plate orifice
  5. 2nd accumulator defective
  6. 3rd accumulator defective
  7. 2nd check ball stuck
  8. 2nd clutch defective
  9. 3rd clutch defective
Notes
  • Check for a stored DTC, and check for loose connectors.
  • Inspect the solenoid valve filter/gasket and the O-rings for wear and damage, and inspect the solenoid valves for seizure.
  • Check the 2nd and the 3rd clutch pressures.
  • Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer and the retainer seal 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 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 3rd clutch feed pipe is loose or damaged.