AutoCodes – Chevrolet – P0751 2015 Chevrolet Silverado

P0751 2015 Chevrolet Silverado Code - Shift Solenoid Valve 1 Performance Stuck Off

Quick Answer

The shift solenoid 1 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: P0751 2015 Chevrolet Silverado indicates Shift Solenoid Valve 1 Performance 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 1,133

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
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0751 2015 Chevrolet Silverado Description

The shift solenoid 1 is part of the control solenoid valve assembly which has no serviceable parts. The control solenoid valve assembly is attached to the lower control valve body. The solenoid operates by the Transmission Control Module opening or closing the ground circuit. With the solenoid circuit grounded (solenoid on), the internal plunger and metering ball block the exhaust fluid creating signal fluid pressure. The signal fluid acts against the clutch select valve 2 to overcome the valve spring force moving it to the apply position, allowing the shift. The shift solenoid 1 is commanded ON in Park, Reverse, Neutral, and Drive 1 Engine Braking, and commanded OFF in Drive 1–6 gear ranges. The Diagnostic Trouble Code (DTC) will be set when the gear slip is greater than 400 RPM for 2 s.

OBDII Code P0751 2015 Chevrolet Silverado - Shift Solenoid Valve 1 Performance Stuck Off - AutoCodes.com — P0751 2015 Chevrolet Silverado Code - Shift Solenoid Valve 1 Performance Stuck Off

What does this mean?

What are the Possible Causes of the DTC P0751 2015 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 P0751 2015 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 does this mean?

Code Tech Notes

When a transmission solenoid is stuck off, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommended to change the transmission fluid and if possible, remove the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure, and that the transmission will need to be rebuilt or replaced.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0751 2015 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 P0751 2015 Chevrolet Silverado code?

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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 P0751 2015 Chevrolet Silverado Code

1. What does OBDII code P0751 for a 2015 Chevrolet Silverado mean?

The P0751 code indicates a performance issue with Shift Solenoid Valve 1, specifically that it is stuck in the off position.

2. What are the common symptoms of a Shift Solenoid Valve 1 Performance Stuck Off issue?

Common symptoms include harsh or delayed shifting, transmission slipping, difficulty shifting gears, and even the transmission going into "limp mode."

3. What can cause the Shift Solenoid Valve 1 to get stuck off in a 2015 Chevrolet Silverado?

Possible causes include a faulty solenoid, electrical issues such as a damaged wiring harness or connector, low transmission fluid levels, or internal transmission problems.

4. How serious is the P0751 code for a 2015 Chevrolet Silverado?

While your vehicle may still be operable with this code, it is important to address it promptly to prevent further damage to the transmission and ensure safe driving conditions.

5. Can I continue driving my 2015 Chevrolet Silverado with the P0751 code?

It is not recommended to drive the vehicle extensively with the P0751 code present, as it can lead to more severe transmission issues over time. It's best to have it diagnosed and repaired as soon as possible.

6. How can I diagnose a Shift Solenoid Valve 1 Performance Stuck Off problem in my Silverado?

Diagnosis typically involves using a scan tool to retrieve the trouble codes, performing a visual inspection of the solenoid and its wiring, checking the transmission fluid level and condition, and conducting various tests to pinpoint the issue.

7. What is the typical repair process for fixing a P0751 code in a 2015 Chevrolet Silverado?

Repair usually involves replacing the Shift Solenoid Valve 1, repairing any damaged wiring or connectors, ensuring proper fluid levels, and clearing the trouble codes from the vehicle's memory.

8. Can I fix the Shift Solenoid Valve issue in my Silverado by myself?

While some DIY enthusiasts may attempt to replace the solenoid or check the wiring themselves, it is recommended to seek professional help, especially when dealing with transmission-related problems to ensure proper diagnosis and repair.

9. How much does it cost to repair a Shift Solenoid Valve 1 Performance Stuck Off issue in a 2015 Chevrolet Silverado?

The cost can vary depending on the extent of the issue, the labor rates in your area, and whether you choose OEM or aftermarket parts. On average, the repair cost can range from $200 to $500.

10. How can I prevent the P0751 code from appearing again in my 2015 Chevrolet Silverado?

Regular maintenance, including checking and changing the transmission fluid as recommended, can help prevent issues like the P0751 code. Additionally, addressing any transmission-related symptoms promptly can help avoid costly repairs in the future.