AutoCodes – Buick – P2719 Buick

P2719 Buick Code - Pressure Control Solenoid 4 System Performance

Quick Answer

The pressure control solenoid 4 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
P2719 Buick indicates Pressure Control Solenoid 4 System 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 366
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 25, 2024
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Code P2719 Buick Description

The pressure control solenoid 4 is part of the control solenoid valve assembly which has no serviceable parts. The normally low-pressure control solenoid 4 regulates and directs oil pressure to the 2-6 clutch regulator valve. Increasing pressure control solenoid 4 pressure increases pressure to the 2-6 clutch regulator valve. The Transmission Control Module (TCM) varies the current to the pressure control solenoid 4 through a low-side driver. Increasing the current to pressure control solenoid 4 increases oil pressure by closing OFF the solenoid exhaust port. Decreasing the current to pressure control solenoid 4 decreases oil pressure by opening the exhaust port. Pressure control solenoid 4 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 malfunction on the pressure control solenoid 4 control circuit where the measured pressure control solenoid 4 current does not equal the commanded pressure control solenoid 4 current for 5 s.
OBDII Code P2719 Buick - Pressure Control Solenoid 4 System Performance - AutoCodes.com
P2719 Buick Code - Pressure Control Solenoid 4 System Performance

What are the Possible Causes of the DTC P2719 Buick?

  • 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 P2719 Buick?

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 P2719 Buick 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 P2719 Buick 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 P2719 Buick Code

1. What are the common symptoms of OBDII code P2719 in a Buick related to Pressure Control Solenoid 4 System Performance?

The common symptoms include harsh or delayed gear shifts, transmission slipping, poor fuel efficiency, and the Check Engine light illuminating.

2. What are the possible causes of OBDII code P2719 in a Buick?

The code P2719 in a Buick can be triggered by issues such as a faulty pressure control solenoid, low transmission fluid levels, dirty transmission fluid, or a damaged wiring harness.

3. How serious is OBDII code P2719 in a Buick?

OBDII code P2719 related to Pressure Control Solenoid 4 System Performance should be addressed promptly to prevent further damage to the transmission system and ensure safe driving conditions.

4. How can I diagnose OBDII code P2719 in my Buick?

Diagnosing OBDII code P2719 involves using an OBDII scanner to retrieve the trouble code, inspecting the transmission fluid level and condition, and checking the wiring connections related to the pressure control solenoid.

5. Can I continue driving my Buick with OBDII code P2719?

It is not recommended to continue driving your Buick with OBDII code P2719, as it can lead to more severe transmission issues and potentially cause safety hazards on the road.

6. How can I repair OBDII code P2719 in my Buick?

Repairing OBDII code P2719 may involve replacing the pressure control solenoid, performing a transmission fluid flush and filter change, checking and repairing any damaged wiring, and clearing the trouble code with an OBDII scanner.

7. Are there any preventive maintenance tips to avoid OBDII code P2719 in a Buick?

To prevent OBDII code P2719, it is recommended to follow the manufacturer's recommended maintenance schedule for transmission fluid changes, regularly inspect the transmission system for leaks or damage, and address any issues promptly.

8. Can a DIY enthusiast fix OBDII code P2719 in a Buick?

While some aspects of diagnosing and repairing OBDII code P2719 can be done by a DIY enthusiast with the right tools and knowledge, it is advisable to consult a professional mechanic for accurate diagnosis and proper repair to avoid further damage.

9. How much does it typically cost to repair OBDII code P2719 in a Buick?

The cost of repairing OBDII code P2719 in a Buick can vary depending on the underlying cause, labor rates in your area, and whether you choose a dealership or independent mechanic. It is recommended to obtain quotes from multiple sources for an accurate estimate.

10. Can resetting the trouble code clear OBDII code P2719 permanently in a Buick?

Resetting the trouble code may temporarily clear OBDII code P2719, but if the underlying issue is not addressed and repaired, the code is likely to reappear. It is crucial to diagnose and fix the root cause of the problem to prevent future occurrences.

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