P2708
Shift Solenoid F Stuck On
Shift solenoid F stays in the activated state when commanded off. Affected gear stays applied so the transmission cannot shift correctly.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
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
Common causes
Ordered by how often each turns out to be the cause.
- Solenoid spool stuck in open positionCommon
- TCM output driver stuck onPossible
- Carbon or debris buildup preventing free movementLess likely
Parts involved
- Shift Solenoid F
- Valve Body
P2708 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.