P0747 — Pressure Control Solenoid 'A' Performance or Stuck Off
Drivable short-term, but fix now to avoid damage.
What P0747 means
This code is set when the pressure control solenoid isn't responding correctly or seems stuck in the off position, so the transmission can't properly regulate hydraulic pressure. It often points to a failing solenoid, but low or degraded fluid and wiring issues can also be the cause. Fixes commonly involve a fluid service, replacing the solenoid, or repairing the electrical connection.
Common symptoms
- Check engine light is on
- Harsh or jerky gear changes
- Transmission slipping or hesitating
- Limp mode with limited gear selection
- Poor fuel economy due to incorrect shifting
Common causes
- Pressure control solenoid stuck or failed
- Low or contaminated transmission fluid
- Damaged wiring or poor connector contact
- Restricted fluid passages in the valve body
- Internal hydraulic or mechanical wear
Typical repair cost
$250 – $900
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0747 code?
Short trips are usually possible, but it isn't ideal. The transmission may shift harshly or limit itself to fewer gears, and driving this way can wear internal parts faster. Get it diagnosed promptly to avoid bigger repairs.
How much does it cost to fix a P0747?
A fluid and filter service may cost around $250, while replacing the pressure control solenoid usually falls between $400 and $900 including labor. The price depends on how deep in the transmission the solenoid sits.
Is P0747 serious?
It should be taken seriously. A stuck-off solenoid disrupts pressure control, which can lead to slipping and clutch damage over time. While the fix is sometimes simple, ignoring it risks a much costlier transmission repair.
What does 'stuck off' mean for the P0747 solenoid?
It means the solenoid isn't engaging when commanded, so it can't reduce line pressure as needed. This often leaves pressure too high, causing firm or harsh shifts, and usually points to a failing solenoid or fluid restriction.