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Late shift after shifting from N to R, or excessive shock when shifted into R

Probable cause(s)
  1. Shift solenoid valve D defective
  2. A/T clutch pressure control solenoid valve A defective
  3. Shift cable broken or out of adjustment
  4. Connection between shift cable and transmission or body is worn
  5. Input shaft (mainshaft) speed sensor defective
  6. Output shaft (countershaft) speed sensor defective
  7. ATF temperature sensor defective
  8. Shift fork shaft stuck
  9. Foreign material in separator plate orifice
  10. Shift valve D defective
  11. 5th/reverse accumulator defective
  12. Lock-up shift valve defective
  13. 5th clutch defective
Notes
  • Check for a stored DTC, and check for loose connections.
  • Test the solenoid valve function with the HDS.
  • Inspect the A/T clutch pressure control solenoid valve body gasket, ATF feed pipes, and O-rings, for wear and damage.
  • Inspect the O-rings, and check the shift solenoid valve for seizure.
  • Check for a loose shift cable at the shift lever and the transmission control lever.
  • Check the input shaft (mainshaft) speed sensor and output shaft (countershaft) speed sensor installation.
  • Inspect the sensor O-ring for wear and damage.
  • Check for a missing shift fork bolt on the shift fork shaft.
  • Inspect the servo valve O-ring.
  • Check the shift fork shaft detent for wear and damage.
  • Check for clogged orifice in the separator plate. If the orifice is clogged, remove it and clean the separator plate orifice.
  • Check the 5th clutch pressure.
  • Check the shift valve D in the main valve body for free movement, and check the valve spring for wear and damage.
  • Inspect the 5th accumulator piston, O-ring, and spring for wear and damage in the servo body.
  • Check the lock-up shift valve in the regulator valve body for free movement, and check the valve spring for wear and damage.
  • Inspect the mainshaft and 5th clutch for wear and damage.
  • Inspect the clutch piston, clutch piston check valve, and O-rings. Check the spring retainer 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 plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.