AutoCodes – GMC – P1467 2020 GMC Sierra

P1467 2020 GMC Sierra Code - EVAP Purge Pump Underspeed

Quick Answer

Purge capacity is being reduced by technologies that improve fuel economy. Common causes include Faulty Evaporative Emission Purge Pump, Evaporative Emission Purge Pump harness is open or shorted, Evaporative Emission Purge Pump circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: P1467 2020 GMC Sierra indicates EVAP Purge Pump Underspeed.
Common causes: Common causes include Faulty Evaporative Emission Purge Pump, Evaporative Emission Purge Pump harness is open or shorted, Evaporative Emission Purge Pump circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 1,030

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 18, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1467 2020 GMC Sierra Description

Purge capacity is being reduced by technologies that improve fuel economy. The Evaporative Emission Purge Pump is used to purge stored vapors from the Evaporative Emission Canister and is required to increase the purge volumes to meet LEV 3 Evaporative Emission requirements. The Evaporative Emission Purge Pump has an integral pressure sensor for controlling purge vapors from the canister. The Engine Control Module (ECM) monitors the Evaporative Emission Purge Pump, and the Diagnostic Trouble Code (DTC) will be set when the EVAP Purge Pump Speed & Desired EVAP Purge Pump Speed is not within a calibrated range for greater than 5 s.

OBDII Code P1467 2020 GMC Sierra - EVAP Purge Pump Underspeed - AutoCodes.com — P1467 2020 GMC Sierra Code - EVAP Purge Pump Underspeed

What does this mean?

What are the Possible Causes of the DTC P1467 2020 GMC Sierra?

Faulty Evaporative Emission Purge Pump
Evaporative Emission Purge Pump harness is open or shorted
Evaporative Emission Purge Pump circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P1467 2020 GMC Sierra?

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

Some 2019-2020 Chevrolet Silverado and GMC Sierra with 2.7L engine may have the Service Engine Soon (SES) Warning Light ON with Diagnostic Trouble Code (DTC) P1467 and/or P1469 set in the Engine Control Module (ECM). The cause is the Evaporative Emission Purge Pump may be filling with liquid fuel due to overfilling the fuel tank. There is a Factory Service Bulletin for this issue, the dealer will inspect the vehicle and replace the Evaporative Emission Purge Pump.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1467 2020 GMC Sierra 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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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 P1467 2020 GMC Sierra Code

1. What are the common symptoms of OBDII code P1467 on a 2020 GMC Sierra related to the EVAP purge pump underspeed?

- Common symptoms include rough idling, stalling, decreased fuel efficiency, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P1467 on a 2020 GMC Sierra?

- Potential causes may include a faulty EVAP purge solenoid, a clogged purge line, a malfunctioning EVAP purge pump, or issues with the wiring or connectors.

3. How can I diagnose OBDII code P1467 on my 2020 GMC Sierra?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the EVAP system components for damage or leaks, and testing the purge pump and solenoid for proper operation.

4. What are some repair tips for addressing OBDII code P1467 on a 2020 GMC Sierra?

- Repair tips may include checking and replacing the EVAP purge pump, inspecting and clearing any obstructions in the purge line, testing and replacing the purge solenoid if necessary, and ensuring all connections are secure.

5. Can I continue driving my 2020 GMC Sierra with OBDII code P1467 present?

- It is generally not recommended to continue driving with this code present, as it can lead to potential issues with the vehicle's performance and emissions. It's best to address the underlying problem promptly.

6. How much does it typically cost to repair OBDII code P1467 on a 2020 GMC Sierra?

- The cost of repairs can vary depending on the exact cause of the issue and whether you choose to address it yourself or take it to a professional mechanic. Costs may range from a few hundred to over a thousand dollars.

7. Is OBDII code P1467 a serious issue on a 2020 GMC Sierra?

- While not an immediate emergency, ignoring OBDII code P1467 can lead to further damage to the EVAP system and potentially affect the vehicle's overall performance and emissions. It is recommended to address the issue promptly.

8. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P1467 on a 2020 GMC Sierra?

- Depending on the specific cause, a DIY enthusiast with basic automotive knowledge may be able to address OBDII code P1467 by following repair guides, replacing components, and ensuring proper diagnostics are performed.

9. How long does it typically take to repair OBDII code P1467 on a 2020 GMC Sierra?

- The repair time can vary based on the complexity of the issue, the availability of parts, and whether you are performing the repairs yourself or taking it to a mechanic. It can range from a few hours to a day or more.

10. Are there any preventative measures to avoid OBDII code P1467 on a 2020 GMC Sierra in the future?

- Regularly inspecting and maintaining the EVAP system components, checking for leaks or damage, and promptly addressing any issues with the purge pump or solenoid can help prevent OBDII code P1467 from occurring in the future.