AutoCodes – Chevrolet – P2728 2017 Chevrolet Silverado

P2728 2017 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 2017 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 260

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 2017 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 2017 Chevrolet Silverado - Pressure Control Solenoid Valve Performance - AutoCodes.com — P2728 2017 Chevrolet Silverado Code - Pressure Control Solenoid Valve Performance

What does this mean?

What are the Possible Causes of the DTC P2728 2017 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 2017 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 2017 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 2017 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 2017 Chevrolet Silverado Code

1. What does the OBDII code P2728 mean on a 2017 Chevrolet Silverado?

P2728 indicates an issue with the pressure control solenoid valve, specifically related to its performance or electrical function within the transmission.

2. What are the common symptoms of P2728 in a 2017 Chevrolet Silverado?

Symptoms may include harsh or delayed shifting, transmission slipping, the vehicle going into limp mode, or the check engine light being illuminated.

3. What causes the P2728 code on a 2017 Chevrolet Silverado?

Possible causes include a faulty pressure control solenoid, transmission fluid issues (low, dirty, or contaminated), wiring problems, or a malfunction in the transmission control module (TCM).

4. Can driving with code P2728 damage my 2017 Chevrolet Silverado?

Yes, continued driving with this code can cause further damage to the transmission, leading to more expensive repairs if not addressed promptly.

5. How do I diagnose the P2728 code on a 2017 Chevrolet Silverado?

Start by checking the transmission fluid level and condition. Then inspect the wiring and connectors to the solenoid for damage. Use a scan tool to monitor transmission pressure and solenoid performance.

6. How do I fix the P2728 code on a 2017 Chevrolet Silverado?

Repairs may involve replacing the faulty pressure control solenoid, repairing damaged wiring, flushing and replacing transmission fluid, or reprogramming or replacing the TCM.

7. What is the cost to repair the P2728 code on a 2017 Chevrolet Silverado?

Repairs can range from $150 to $400 for solenoid replacement, but costs may increase if additional work, such as TCM replacement or a transmission rebuild, is required.

8. Can low transmission fluid cause the P2728 code on a 2017 Chevrolet Silverado?

Yes, low or dirty transmission fluid can affect solenoid performance and trigger the P2728 code.

9. Do I need to replace the transmission to fix the P2728 code on my 2017 Chevrolet Silverado?

Not necessarily. In most cases, replacing the solenoid, repairing wiring, or addressing fluid issues resolves the problem. A full transmission replacement is only needed in severe cases.

10. Can I reset the P2728 code without repairing the issue on my 2017 Chevrolet Silverado?

You can clear the code with a scan tool, but it will likely return unless the underlying issue is resolved. Ignoring the problem can lead to further transmission damage.