Vehicle moves in D, D3, and M, but not in R

Probable cause(s)

1. Shift solenoid valve E defective
2. Shift fork shaft stuck
3. Shift valve E defective
4. 4th/reverse accumulator defective
5. 4th clutch defective
6. Reverse gears worn or damaged

Notes

- Check the D indicator, and check for loose connectors.
- Inspect the shift solenoid valve E for seizure, and O-rings for wear and damage.
- Check for a missing shift fork bolt on the shift fork shaft.
- Check the 4th clutch pressure.
- Inspect the clutch piston, clutch piston check valve, and O-rings. Check the spring retainer and retainer seal for wear and damage. Inspect the clutch end-plate-to-top-disc clearance. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage. If the discs are worn or damaged, replace the discs as a set. Inspect the clutch waved-plate height. If the height is out of tolerance, replace the waved-plate. If the discs and plates are OK, adjust the clearance with the clutch end plate.
- Inspect the reverse selector gear teeth chamfers, and inspect engagement teeth chamfers of the countershaft 4th gear and reverse gear. Replace the reverse gears and the reverse selector if they are worn or damaged. If the transmission makes a clicking, grinding, or whirring noise, also replace the mainshaft 4th gear, reverse idler gear, and countershaft 4th gear.