AutoCodes – GMC – P1467 2021 GMC Sierra

P1467 2021 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 2021 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 965

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
Cost to Diagnose
FAQs
Comments
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Code P1467 2021 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 2021 GMC Sierra - EVAP Purge Pump Underspeed - AutoCodes.com — P1467 2021 GMC Sierra Code - EVAP Purge Pump Underspeed

What does this mean?

What are the Possible Causes of the DTC P1467 2021 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 2021 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1467 2021 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.

Need more information about the P1467 2021 GMC Sierra 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 P1467 2021 GMC Sierra Code

What does the OBDII code P1467 mean for a 2021 GMC Sierra?

P1467 indicates an issue with the EVAP purge pump, specifically that it is operating at an underspeed, meaning it is not functioning properly.

What are the common symptoms of the P1467 code?

Common symptoms may include a check engine light, decreased fuel efficiency, rough idling, or difficulty starting the engine.

What could cause the P1467 code to trigger?

Causes can include a faulty EVAP purge pump, electrical issues such as wiring or connector problems, or a blockage in the EVAP system.

How can I diagnose the issue related to the P1467 code?

To diagnose the issue, you can use an OBDII scanner to confirm the code, inspect the EVAP purge pump and associated wiring, and run a smoke test to check for leaks in the EVAP system.

Is it safe to drive with the P1467 code?

While it may not cause immediate safety issues, driving with this code could lead to increased emissions and poor fuel economy, making it advisable to address the problem sooner rather than later.

What are some common repairs for the P1467 code?

Common repairs include replacing the EVAP purge pump, repairing or replacing damaged wiring or connectors, or clearing blockages in the EVAP lines.

Can I fix the P1467 code myself, or should I see a mechanic?

If you have experience with automotive repairs, you might be able to troubleshoot and replace the purge pump yourself. However, if you're unsure, it's best to consult a professional mechanic.

Will clearing the P1467 code make the problem go away?

Clearing the code may temporarily turn off the check engine light, but it won't fix the underlying issue. The code will likely return if the problem isn't addressed.

How much does it typically cost to repair the P1467 code?

Repair costs can vary widely depending on the specific issue, but replacing an EVAP purge pump typically ranges from $100 to $300, including parts and labor.