P0747 2018 Chevrolet Silverado Code - Transmission Control Solenoid Valve 1 Stuck On
Quick Answer
The solenoid actuator controls fluid pressure by moving the clutch 1-2-3-4-5-6 regulator valve that controls the fluid pressure to the 1-2-3-4-5-6 clutch. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid Valve. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0747 2018 Chevrolet Silverado indicates Transmission Control Solenoid Valve 1 Stuck On.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid Valve.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0747 2018 Chevrolet Silverado Description
What are the Possible Causes of the DTC P0747 2018 Chevrolet Silverado?
- Low transmission fluid level
- Dirty transmission fluid
- Faulty Transmission Control Solenoid Valve
- Transmission Control Solenoid Valve harness is open or shorted
- Transmission Control Solenoid Valve circuit poor electrical connection
How to Fix the DTC P0747 2018 Chevrolet Silverado?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0747 2018 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0747 2018 Chevrolet Silverado Code
1. What does the P0747 code mean on a 2018 Chevrolet Silverado?
The P0747 code indicates that Transmission Control Solenoid Valve 1 is stuck on, which can affect the transmission's ability to shift properly.
2. What are the common symptoms of the P0747 code?
Symptoms include harsh or erratic shifting, transmission slipping, inability to shift gears, or the vehicle going into limp mode.
3. What causes the P0747 code on a 2018 Chevrolet Silverado?
Common causes include a malfunctioning transmission control solenoid, low or contaminated transmission fluid, wiring issues, or a damaged valve body.
4. Can driving with the P0747 code damage my Silverado's transmission?
Yes, driving with this code can cause further wear and tear on the transmission, leading to more expensive repairs if not addressed promptly.
5. How is the P0747 code diagnosed?
A mechanic will use an OBDII scanner to retrieve the code, inspect the transmission fluid level and condition, test the solenoid, and check for wiring or electrical issues.
6. How do you fix the P0747 code on a 2018 Chevrolet Silverado?
Repairs may include replacing the transmission control solenoid, cleaning or replacing the valve body, flushing the transmission fluid, or repairing damaged wiring.
7. How much does it cost to fix the P0747 code?
Repair costs vary but can range from $300 to $1,000 depending on whether the solenoid, valve body, or wiring needs replacement.
8. Can low transmission fluid cause the P0747 code?
Yes, low or contaminated transmission fluid can cause the solenoid to malfunction and trigger this code.
9. Do I need to replace the transmission for a P0747 code?
Not necessarily. Often, the issue can be resolved by replacing the solenoid or valve body without replacing the entire transmission.
10. Can a dirty transmission filter trigger the P0747 code?
Yes, a clogged or dirty transmission filter can restrict fluid flow and contribute to solenoid issues, potentially triggering the code.
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