Transmission Does Not Shift

Transmission does not shift

Input shaft (mainshaft) speed sensor defective

Output shaft (countershaft) speed sensor defective

Notes

Check for a stored DTC, and check for loose connections Shift Solenoid Valve Test, Replacement, And Shift Solenoid Wire Harness Replacement.

Notes

Check the speed sensor installation.

Notes

Inspect the input or output shaft speed sensor O-ring for wear and damage.