AutoCodes – Chevrolet – P1467 2020 Chevrolet Silverado

P1467 2020 Chevrolet Silverado 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 Chevrolet Silverado 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 3,781

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 Chevrolet Silverado 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 Chevrolet Silverado - EVAP Purge Pump Underspeed - AutoCodes.com — P1467 2020 Chevrolet Silverado Code - EVAP Purge Pump Underspeed

What does this mean?

What are the Possible Causes of the DTC P1467 2020 Chevrolet Silverado?

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 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

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 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.

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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 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P1467 on a 2020 Chevrolet Silverado?

The common symptoms include a check engine light illuminating on the dashboard, decreased fuel efficiency, and potential rough idling or stalling.

2. What does the OBDII code P1467 indicate specifically for a 2020 Chevrolet Silverado?

P1467 indicates an issue with the EVAP (Evaporative Emission) Purge Pump underspeed on the vehicle.

3. What are some possible causes of OBDII code P1467 on a 2020 Chevrolet Silverado?

Common causes include a faulty EVAP Purge Pump, damaged wiring or connectors in the EVAP system, or a malfunctioning EVAP pressure sensor.

4. How can I diagnose the OBDII code P1467 on my 2020 Chevrolet Silverado?

Diagnosis typically involves using an OBDII scanner to read the code, inspecting the EVAP system components for any visible damage, and testing the EVAP Purge Pump's functionality.

5. Can I continue driving my 2020 Chevrolet Silverado with OBDII code P1467?

It is not recommended to ignore this code, as it can lead to increased emissions, potential damage to other engine components, and may cause the vehicle to fail an emissions test.

6. How can I repair OBDII code P1467 on my 2020 Chevrolet Silverado?

Repair may involve replacing the EVAP Purge Pump, repairing or replacing damaged wiring or connectors, or addressing any issues with the EVAP pressure sensor.

7. Can a DIY enthusiast fix OBDII code P1467 on a 2020 Chevrolet Silverado?

While some may have the skills to perform the necessary repairs, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair of this code.

8. Are there any maintenance tips to prevent OBDII code P1467 on a 2020 Chevrolet Silverado?

Regularly inspecting the EVAP system components for damage or wear, ensuring proper gas cap tightness, and following the manufacturer's recommended maintenance schedule can help prevent this code.

9. Will resetting the check engine light resolve OBDII code P1467 on a 2020 Chevrolet Silverado?

Simply resetting the check engine light will not fix the underlying issue causing the code. It is important to diagnose and repair the root cause to prevent the code from reoccurring.

10. How much does it typically cost to repair OBDII code P1467 on a 2020 Chevrolet Silverado?

The cost of repair can vary depending on the specific cause of the code, the labor rates in your area, and whether genuine OEM parts are used. It is advisable to obtain quotes from reputable mechanics for an accurate estimate.