Powertrain
generic / SAE
P284B
Shift Fork C Stuck
Shift fork C cannot leave its current engagement position when the actuator commands movement. Mechanical jam or actuator without travel.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number8 / 4B
Possible causes
- Shift fork mechanically jammed high
- Synchroniser teeth damaged medium
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 800–3500 €
- Estimated time: 4–14 h
- Component: shift fork c
- Component: shift fork actuator c
- Component: synchroniser assembly
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012