AutoCodes – Buick – P0796 Buick

P0796 Buick Code - Pressure Control Solenoid Valve 3 Stuck Off

Quick Answer

The clutch pressure control solenoid 3 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: P0796 Buick indicates Pressure Control Solenoid Valve 3 Stuck Off.
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 4,744

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 P0796 Buick Description

The clutch pressure control solenoid 3 is part of the control solenoid valve assembly, which has no serviceable parts. The Clutch Pressure Control Solenoid 3 regulates transmission fluid pressure to the CBR1/C 4-5-6 clutch regulator valve which controls pressure to the low/reverse clutch and the 4-5-6 clutch. The Transmission Control Module calculates gear ratio based on the RPM signals from the input speed sensor (ISS) and the output speed sensor (OSS). The Transmission Control Module compares the expected transmission gear ratio to the calculated gear ratio for each commanded gear. The Diagnostic Trouble Code (DTC) will be set when the Transmission Control Module has detected an incorrect gear ratio or neutral condition when the low and reverse clutch and the 4-5-6 clutch is commanded ON. This condition must occur 3 times.

OBDII Code P0796 Buick - Pressure Control Solenoid Valve 3 Stuck Off - AutoCodes.com — P0796 Buick Code - Pressure Control Solenoid Valve 3 Stuck Off

What does this mean?

What are the Possible Causes of the DTC P0796 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 P0796 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 P0796 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.

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Need Help with the 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 P0796 Buick Code

1. What are the common symptoms of OBDII code P0796 in a Buick related to the Pressure Control Solenoid Valve 3 Stuck Off?

- Common symptoms include harsh shifting, delayed gear engagement, transmission slipping, and decreased fuel efficiency.

2. What are the possible causes of the Pressure Control Solenoid Valve 3 Stuck Off code in a Buick?

- Possible causes include a faulty pressure control solenoid, low transmission fluid level, dirty transmission fluid, wiring issues, or a malfunctioning transmission control module.

3. How serious is the P0796 OBDII code in a Buick?

- This code should be addressed promptly as it can lead to further damage to the transmission if left unrepaired.

4. How can I diagnose the Pressure Control Solenoid Valve 3 Stuck Off code in my Buick?

- Diagnosis typically involves using a scan tool to read the code, checking the transmission fluid level and condition, and conducting a visual inspection of the wiring and solenoid connections.

5. Can I drive my Buick with the P0796 code present?

- It is not recommended to drive the vehicle with this code present, as it can lead to transmission issues and potential further damage.

6. How much does it typically cost to repair the Pressure Control Solenoid Valve 3 Stuck Off code in a Buick?

- The cost of repair can vary depending on the exact cause, but it may range from $200 to $600 for parts and labor.

7. Is it possible to reset the P0796 code in a Buick without fixing the underlying issue?

- While you can clear the code with a scan tool, it is important to address the root cause to prevent further transmission problems.

8. Can a DIY enthusiast repair the Pressure Control Solenoid Valve 3 Stuck Off code in a Buick?

- Depending on the cause, some DIY repairs may be possible, such as replacing the pressure control solenoid. However, more complex issues may require professional expertise.

9. How long does it typically take to repair the P0796 code in a Buick?

- The repair time can vary based on the exact cause and the extent of the issue, but it may take a few hours to a full day to complete the repair.

10. Are there any preventative maintenance tips to avoid the P0796 OBDII code in a Buick?

- Regularly checking and changing the transmission fluid, ensuring proper fluid levels, and addressing any transmission issues promptly can help prevent the occurrence of this code.