Vehicle moves in R, but not in D or S
Probable cause(s)
Transmission range switch broken or out of adjustment
Shift cable broken, binding, or out of adjustment
Connection between shift cable and transmission or shift lever is worn
Manual valve defective
1st accumulator defective
Idler gears worn or damaged
Notes
Inspect the transmission range switch. If the transmission range switch fails the inspection, replace the switch. If the inspection is OK, check for proper transmission range switch installation, and adjust the shift cable.
Check for a loose shift cable at the shift lever and the selector control lever.
Check the manual valve in the manual valve body for wear and damage, and check the manual lever guide pin for wear and damage.
Check the 1st accumulator piston, the O-ring, and the spring in the manual valve body for wear and damage.
Inspect the mainshaft, the countershaft, the secondary shaft, the third shaft, and idler gears for wear and damage.