- Transmission fluid: Low transmission fluid can cause the transmission to become difficult or impossible to shift.
- Worn or broken synchronizers: Synchronizers are parts that help the gears in the transmission mesh smoothly. If they are worn or damaged, it can be difficult or impossible to shift gears.
- Bent or damaged shift linkages: The shift linkages are the parts that connect the shift lever to the transmission. If they are bent or damaged, it can be difficult or impossible to shift gears.
- Failed clutch release mechanism: If the clutch release mechanism fails, it will not be able to disengage the clutch from the flywheel, preventing the transmission from going into gear.
- Damaged transmission housing: If the transmission housing is damaged, it can cause the gears to misalign and prevent the transmission from going into gear.
- Worn or damaged input/output shaft bearing: If these bearings are worn or damaged, it will cause the gears to be misaligned and prevent the transmission from going into gear.
- Faulty transmission shift motor/solenoid: This component is responsible for actuating the shift forks, which engage and disengage the transmission gears. If the shift motor/solenoid fails, the transmission will not go into gear.
If You Have Determined That the Transmission Fluid is Full and Clean and the Problem Persists, You Should Have the Vehicle Inspected by a Transmission Mechanic to Properly Identify the Issue.
