AutoCodes – Chevrolet – P2728 2018 Chevrolet Silverado

P2728 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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.

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Code Popularity 248

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2728 2018 Chevrolet Silverado Description

The pressure control solenoid 5 is part of the control solenoid valve assembly which has no serviceable parts. The normally low-pressure control solenoid 5 regulates and directs oil pressure to the 1-2-3-4 clutch regulator valve and 1-2-3-4 clutch boost valve. Increasing pressure control solenoid 5 pressure increases pressure to the 1-2-3-4 clutch. The Transmission Control Module varies the current to the pressure control solenoid 5 through a low-side driver. Increasing the current to pressure control solenoid 5 increases oil pressure by closing OFF the solenoid exhaust port. Decreasing the current to pressure control solenoid 5 decreases oil pressure by opening the exhaust port. Pressure control solenoid 5 power is supplied by the Transmission Control Module through a high side driver. The high-side driver protects the circuit and components from excessive current flow. If excessive current flow is detected, the high side driver will turn OFF. When the fault is corrected, the high-side driver will reset.
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.

OBDII Code P2728 2018 Chevrolet Silverado - Pressure Control Solenoid Valve Performance - AutoCodes.com — P2728 2018 Chevrolet Silverado Code - Pressure Control Solenoid Valve Performance

What does this mean?

What are the Possible Causes of the DTC P2728 2018 Chevrolet Silverado?

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 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2728 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.

Need more information about the P2728 2018 Chevrolet Silverado code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2728 2018 Chevrolet Silverado Code

1. What are common symptoms of OBDII code P2728 in a 2018 Chevrolet Silverado?

- Common symptoms include harsh shifting, transmission slipping, decreased fuel efficiency, and the transmission going into limp mode.

2. What can cause the OBDII code P2728 in a 2018 Chevrolet Silverado?

- The code P2728 is typically triggered by issues with the pressure control solenoid valve, such as electrical faults, mechanical failures, or a faulty solenoid.

3. How serious is OBDII code P2728 in a 2018 Chevrolet Silverado?

- Code P2728 should be addressed promptly as it can lead to further transmission problems if left unresolved, potentially causing damage to the transmission system.

4. Can I still drive my 2018 Chevrolet Silverado with OBDII code P2728?

- It is not recommended to drive the vehicle with code P2728 present, as it can lead to further damage to the transmission. It is best to address the issue as soon as possible.

5. How is OBDII code P2728 diagnosed in a 2018 Chevrolet Silverado?

- Diagnosis typically involves using a scan tool to retrieve the code, checking the transmission fluid level and condition, and testing the pressure control solenoid valve for proper operation.

6. What are some DIY repair tips for fixing OBDII code P2728 in a 2018 Chevrolet Silverado?

- DIY repair tips include checking and replacing the transmission fluid, inspecting the wiring and connections to the pressure control solenoid valve, and ensuring the valve is functioning correctly.

7. Can a faulty pressure control solenoid valve be repaired, or does it need to be replaced?

- In most cases, a faulty pressure control solenoid valve will need to be replaced rather than repaired to ensure proper transmission operation and prevent future issues.

8. Is it necessary to reset the OBDII code P2728 after repairing the issue in a 2018 Chevrolet Silverado?

- Yes, it is important to clear the code using a scan tool after repairing the underlying issue to reset the Check Engine Light and ensure the repair was successful.

9. How much does it typically cost to repair OBDII code P2728 in a 2018 Chevrolet Silverado?

- The cost of repairing code P2728 can vary depending on the extent of the issue and whether the pressure control solenoid valve needs to be replaced, but it can range from a few hundred to over a thousand dollars.

10. Can a professional mechanic help diagnose and repair OBDII code P2728 in a 2018 Chevrolet Silverado?

- Yes, it is recommended to consult a professional mechanic for diagnosing and repairing OBDII code P2728 to ensure the issue is properly addressed and to prevent further transmission problems.