Shift Solenoid F Performance/Stuck Off
Shift solenoid F is commanded on but does not produce the expected hydraulic response. Spool stuck closed or hydraulic apply circuit blocked.
Affected components
- Shift solenoid f
- Valve body
Common causes
- High likelihood: Solenoid spool stuck in closed position
- Medium likelihood: Apply circuit blocked by debris in valve body
- Low likelihood: Carbon or debris buildup preventing free movement
Possible 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
Diagnostic notes
- The malfunction indicator lamp may illuminate
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.