Engine-CodesGMC – P0762 GMC

P0762 GMC Code - Shift Solenoid Valve 3 Performance Stuck On

Quick Answer

The P0762 GMC code indicates a problem with the Shift Solenoid Valve 3 in the transmission, specifically that it is stuck in the on position. Common causes include Faulty Shift Solenoid Valve 3, Wiring or electrical connection issues, Low transmission fluid level or dirty 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
P0762 GMC indicates Shift Solenoid Valve 3 Performance Stuck On.
Common causes
Common causes include Faulty Shift Solenoid Valve 3, Wiring or electrical connection issues, Low transmission fluid level or dirty 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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0762 GMC Description

The P0762 GMC code indicates a problem with the Shift Solenoid Valve 3 in the transmission, specifically that it is stuck in the on position. The shift solenoid valves in an automatic transmission control the flow of transmission fluid to actuate gear shifts. When the Shift Solenoid Valve 3 is stuck on, it can cause issues with gear shifting, leading to poor performance, fuel efficiency, and potential long-term damage to the transmission system.

OBDII Code P0762 GMC - Shift Solenoid Valve 3 Performance Stuck On
P0762 GMC Code - Shift Solenoid Valve 3 Performance Stuck On

Common Causes of P0762 GMC

  1. Faulty Shift Solenoid Valve 3
  2. Wiring or electrical connection issues
  3. Low transmission fluid level or dirty fluid
  4. Internal transmission mechanical problems
  5. Shift solenoid control circuit issues

Symptoms of P0762 GMC

  1. Rough or delayed shifting between gears
  2. Vehicle stuck in a single gear
  3. Slipping gears
  4. Erratic shifting patterns
  5. Illuminated check engine light

How to Fix P0762 GMC

  1. Perform a diagnostic scan to confirm the P0762 code and identify the exact cause of the issue.
  2. Inspect the Shift Solenoid Valve 3 for any physical damage or blockages.
  3. Test the wiring and connections associated with the solenoid for any faults.
  4. Replace the Shift Solenoid Valve 3 if it is found to be faulty.
  5. Flush and refill the transmission fluid if necessary and clear the code from the vehicle's computer.

Cost to Fix P0762 GMC

The estimated cost to repair a Shift Solenoid Valve 3 performance issue can range from $150 to $400, depending on the make and model of the vehicle, the location of the repair shop, and the extent of the repairs needed. This cost includes parts and labor. It is important to note that additional costs may be incurred if there are other underlying issues with the transmission that need to be addressed. It is recommended to get a few quotes from different repair shops to ensure you are getting a fair price for the repairs.

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Information for Specific GMC Models

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 P0762 GMC Code

1. What does the OBDII code P0762 mean for a GMC vehicle?

P0762 indicates that the Shift Solenoid Valve 3 is stuck in the "On" position, which affects the transmission's ability to shift gears properly.

2. What are the common symptoms of a P0762 code on a GMC?

Common symptoms include harsh or delayed shifting, transmission stuck in one gear, decreased fuel efficiency, and possible activation of the Check Engine Light.

3. What causes the P0762 code in GMC vehicles?

Possible causes include a malfunctioning shift solenoid, low or dirty transmission fluid, damaged wiring or connectors, or internal transmission mechanical issues.

4. Can I drive my GMC with a P0762 code?

Driving with a P0762 code is not recommended as it can lead to further transmission damage and unsafe driving conditions.

5. How can I fix a P0762 code on my GMC?

Repairs may involve replacing the faulty shift solenoid, cleaning or replacing transmission fluid, repairing damaged wiring, or addressing internal transmission issues.

6. How do I diagnose the P0762 code on a GMC?

Diagnosis involves checking transmission fluid levels and condition, inspecting wiring and connectors, and testing the shift solenoid for proper operation using a scan tool.

7. How much does it cost to repair a P0762 code on a GMC?

Repair costs can range from $150 to $400 for solenoid replacement, but internal transmission repairs may cost significantly more.

8. Can low transmission fluid cause a P0762 code on a GMC?

Yes, low or dirty transmission fluid can lead to solenoid performance issues and trigger the P0762 code.

9. How do I prevent a P0762 code from occurring on my GMC?

Regular maintenance, including timely transmission fluid changes and inspections, can help prevent issues with shift solenoids.

10. Is the P0762 code specific to GMC vehicles?

No, the P0762 code can occur in other vehicles, but the specific symptoms and repair steps may vary depending on the make and model.

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