P075B
Shift Solenoid G Performance/Stuck Off
Shift solenoid G is electrically intact, but its hydraulic effect is missing — when commanded on, the gear it should engage does not lock up. Either the solenoid is mechanically stuck closed, the valve body bore is worn, or hydraulic pressure does not reach the clutch pack.
- 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 stuck closed by debris in the ATFCommon
- Worn valve body bore leaking pressurePossible
- Old, contaminated transmission fluidPossible
Parts involved
- Shift Solenoid G
- Valve Body
- Clutch Pack
P075B 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.