P2728 2015 GMC Sierra Code - Pressure Control Solenoid Valve Performance
Quick Answer
The pressure control solenoid 5 is part of the control solenoid valve assembly which has no serviceable parts. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Control Solenoid Valve Assembly. 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
- P2728 2015 GMC Sierra indicates Pressure Control Solenoid Valve Performance.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Control Solenoid Valve Assembly.
- 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 P2728 2015 GMC Sierra Description
The Diagnostic Trouble Code (DTC) will be set when the Transmission Control Module detects an internal electrical performance malfunction of the clutch pressure control solenoid valve 5 control circuit where the measured clutch pressure control solenoid valve 5 current does not equal the commanded clutch pressure control solenoid valve 5 current for 5 s.
What are the Possible Causes of the DTC P2728 2015 GMC Sierra?
- Low transmission fluid level
- Dirty transmission fluid
- Faulty Control Solenoid Valve Assembly
- Control Solenoid Valve Assembly harness or connectors
- Control Solenoid Valve Assembly circuit is open or shorted
How to Fix the DTC P2728 2015 GMC Sierra?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2728 2015 GMC Sierra 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.
Need more information about the P2728 2015 GMC Sierra code?
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Frequently Asked Questions about P2728 2015 GMC Sierra Code
1. What does the OBDII code P2728 indicate on a 2015 GMC Sierra?
- Code P2728 indicates an issue with the pressure control solenoid "E" performance, suggesting that the solenoid's operation is outside of the expected parameters set by the manufacturer.
2. What are common symptoms of code P2728 in a 2015 GMC Sierra?
- Symptoms can include harsh shifting, slipping gears, transmission overheating, decreased fuel efficiency, and the transmission may enter limp mode. The check engine light will also be illuminated.
3. What causes code P2728 to appear on a 2015 GMC Sierra?
- Common causes include faulty or sticking pressure control solenoid, dirty or low transmission fluid, blockages in the transmission fluid passages, or problems with the transmission control module.
4. How can I fix the P2728 code on my 2015 GMC Sierra?
- Repairs might involve replacing the faulty pressure control solenoid, changing or flushing the transmission fluid, cleaning the transmission fluid passages, or in some cases, repairing or replacing the transmission control module.
5. Is it safe to drive my 2015 GMC Sierra with code P2728 displayed?
- Driving with code P2728 can lead to further damage to the transmission. It is advisable to address the issue as soon as possible to avoid potential costly repairs.
6. How is the P2728 code diagnosed in a 2015 GMC Sierra?
- Diagnosis involves using a scan tool to confirm the presence of the code, followed by a visual inspection of the transmission fluid and solenoid. Advanced diagnostics might include measuring the resistance of the solenoid and pressure tests within the transmission.
7. What tools are required to diagnose and repair code P2728 on a 2015 GMC Sierra?
- Tools needed may include a diagnostic scan tool, a multimeter for electrical testing, and basic hand tools for accessing the transmission components. A pressure gauge might also be necessary for hydraulic tests.
8. Could code P2728 on a 2015 GMC Sierra be triggered by electrical issues?
- Yes, electrical issues such as poor connections, damaged wires, or faulty sensors connected to the transmission control module can trigger this code. Checking and repairing any electrical faults can resolve the issue.
9. What is the cost range for repairing code P2728 on a 2015 GMC Sierra?
- The repair costs can vary widely, ranging from $150 to $600 or more, depending on whether the fix involves simple electrical repairs or replacing the pressure control solenoid and additional transmission service.
10. How often does code P2728 occur in 2015 GMC Sierras?
- The occurrence of code P2728 is not extremely common but can happen, especially in vehicles with higher mileage or those that have not had regular transmission maintenance.
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