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Engine-Codes – GMC – P0751 2017 GMC Sierra

P0751 2017 GMC Sierra Code - Shift Solenoid Valve 1 Performance Stuck Off

Quick Answer

The P0751 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a problem with the Shift Solenoid Valve 1 Performance being stuck off. Common causes include Malfunctioning Shift Solenoid Valve 1, Wiring issues or electrical connection problems, Low transmission fluid level or contaminated fluid. 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 2017 GMC Sierra indicates Shift Solenoid Valve 1 Performance Stuck Off.
Common causes
Common causes include Malfunctioning Shift Solenoid Valve 1, Wiring issues or electrical connection problems, Low transmission fluid level or contaminated fluid.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 18, 2024
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Code P0751 2017 GMC Sierra Description

The P0751 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a problem with the Shift Solenoid Valve 1 Performance being stuck off. This code is typically triggered when the powertrain control module (PCM) detects that the electrical signal sent to the Shift Solenoid Valve 1 does not match the expected performance parameters. The Shift Solenoid Valve 1 is responsible for controlling the flow of transmission fluid to engage the appropriate gear for smooth shifting. When this solenoid is stuck off, it can lead to issues with gear shifting, transmission performance, and overall drivability of the vehicle.

OBDII Code P0751 2017 GMC Sierra - Shift Solenoid Valve 1 Performance Stuck Off
P0751 2017 GMC Sierra Code - Shift Solenoid Valve 1 Performance Stuck Off

Common Causes of P0751 2017 GMC Sierra

  1. Malfunctioning Shift Solenoid Valve 1.
  2. Wiring issues or electrical connection problems.
  3. Low transmission fluid level or contaminated fluid.
  4. Faulty transmission control module (TCM).
  5. Mechanical damage or blockage in the transmission system.

Symptoms of P0751 2017 GMC Sierra

  1. Delayed or rough shifting between gears.
  2. Slipping transmission or difficulty engaging gears.
  3. Transmission staying in one gear or not shifting at all.
  4. Illumination of the Check Engine Light on the dashboard.

How to Fix P0751 2017 GMC Sierra

  1. Perform a diagnostic scan to confirm the P0751 code and identify the specific issue.
  2. Inspect the Shift Solenoid Valve 1 and its wiring for any visible damage or loose connections.
  3. Check and adjust the transmission fluid level and quality, topping up or replacing as needed.
  4. Test the TCM for proper operation and replace if necessary.
  5. If the solenoid valve is faulty, it may need to be replaced, followed by clearing the code and testing the transmission for proper function.

Cost to Fix P0751 2017 GMC Sierra

The cost of repairing a Shift Solenoid Valve 1 Performance Stuck Off issue can vary depending on the extent of the problem and the specific components that need to be replaced. In general, the parts cost for a new shift solenoid valve can range from $50 to $200, with additional costs for labor and potential diagnostic fees. The total repair cost could range from $150 to $500 or more, depending on the shop's labor rates and any additional services required. It's recommended to get a detailed quote from a reputable auto repair shop to determine the exact cost for your specific vehicle and location.

What does this mean?

Tech Notes for P0751 2017 GMC Sierra

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.

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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 2017 GMC Sierra Code

1. What does OBDII code P0751 for a 2017 GMC Sierra indicate?

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

2. What are the common symptoms of a Shift Solenoid Valve 1 malfunction?

Common symptoms include harsh or delayed shifting, transmission slipping, decreased fuel efficiency, and the transmission getting stuck in one gear.

3. What are the possible causes of OBDII code P0751 in a GMC Sierra?

Possible causes include a faulty shift solenoid, low transmission fluid, a clogged transmission filter, electrical issues, or internal transmission problems.

4. How can I diagnose the Shift Solenoid Valve 1 issue in my 2017 GMC Sierra?

Diagnosis typically involves using a scan tool to retrieve the trouble code, checking the transmission fluid level and condition, and performing a visual inspection of the shift solenoid and its wiring.

5. Can I continue driving my GMC Sierra with OBDII code P0751?

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

6. How can I repair OBDII code P0751 in my GMC Sierra?

Repair options may include replacing the faulty shift solenoid, performing a transmission fluid flush and filter change, addressing any electrical issues, or seeking professional assistance from a mechanic.

7. Is it possible to clear the P0751 code on my own?

You can attempt to clear the code using an OBDII scanner, but it is important to address the underlying issue causing the code to prevent it from reoccurring.

8. Does OBDII code P0751 affect the overall drivability of my 2017 GMC Sierra?

Yes, this code can affect the drivability of the vehicle by causing transmission shifting problems and potential performance issues.

9. How much does it typically cost to repair OBDII code P0751 in a GMC Sierra?

The cost of repair can vary depending on the specific issue causing the code, but it may range from a few hundred dollars for a simple fix to over a thousand dollars for more complex repairs.

10. Can regular maintenance help prevent OBDII code P0751 from occurring in my GMC Sierra?

Regular maintenance such as changing the transmission fluid at recommended intervals, checking for leaks, and addressing any transmission issues promptly can help prevent code P0751 and other related problems.

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