Engine-CodesChevrolet – P1467 2020 Chevrolet Silverado

P1467 2020 Chevrolet Silverado Code - EVAP Purge Pump Underspeed

Quick Answer

The P1467 code on a 2020 Chevrolet Silverado indicates a problem with the EVAP (Evaporative Emission Control) system's purge pump underspeed. Common causes include Faulty Purge Pump: The most common cause of the P1467 code is a malfunctioning or failing EVAP purge pump, Wiring Issues: Problems with the wiring or connectors associated with the purge pump can also trigger this code, Vacuum Leaks: Any leaks in the vacuum lines or hoses connected to the EVAP system can cause underspeed issues with the purge pump. 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 Purge Pump: The most common cause of the P1467 code is a malfunctioning or failing EVAP purge pump, Wiring Issues: Problems with the wiring or connectors associated with the purge pump can also trigger this code, Vacuum Leaks: Any leaks in the vacuum lines or hoses connected to the EVAP system can cause underspeed issues with the purge pump.
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.
Table of contents Created and updated by William Orellana on Sep 15, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P1467 2020 Chevrolet Silverado Description

The P1467 code on a 2020 Chevrolet Silverado indicates a problem with the EVAP (Evaporative Emission Control) system's purge pump underspeed. The EVAP system is responsible for capturing and storing fuel vapors from the fuel tank to prevent them from being released into the atmosphere. The purge pump is a key component of this system, as it helps to control the flow of fuel vapors to the engine for combustion.

OBDII Code P1467 2020 Chevrolet Silverado - EVAP Purge Pump Underspeed
P1467 2020 Chevrolet Silverado Code - EVAP Purge Pump Underspeed

Common Causes of P1467 2020 Chevrolet Silverado

  1. Faulty Purge Pump: The most common cause of the P1467 code is a malfunctioning or failing EVAP purge pump.
  2. Wiring Issues: Problems with the wiring or connectors associated with the purge pump can also trigger this code.
  3. Vacuum Leaks: Any leaks in the vacuum lines or hoses connected to the EVAP system can cause underspeed issues with the purge pump.
  4. Clogged Purge Valve: A clogged purge valve can restrict the flow of fuel vapors to the engine, leading to underspeed operation of the purge pump.

Symptoms of P1467 2020 Chevrolet Silverado

  1. Check Engine Light: The most common symptom associated with the P1467 code is the illumination of the check engine light on the vehicle's dashboard.
  2. Rough Idle: A malfunctioning purge pump can cause the engine to idle roughly or inconsistently.
  3. Decreased Fuel Efficiency: A faulty EVAP purge pump can lead to decreased fuel efficiency as the engine may not be receiving the proper amount of fuel vapors.
  4. Hissing Noise: A hissing noise coming from the EVAP system area may indicate a leak or issue with the purge pump.

How to Fix P1467 2020 Chevrolet Silverado

  1. Diagnose the Issue: Use a scan tool to retrieve the trouble code and perform a thorough inspection of the EVAP system to identify the root cause of the problem.
  2. Replace Purge Pump: If the purge pump is found to be faulty, it will need to be replaced with a new unit.
  3. Repair Wiring: Address any wiring issues or damaged connectors that may be affecting the operation of the purge pump.
  4. Clear Codes: After completing the repairs, clear the trouble codes from the vehicle's computer system to reset the check engine light.
  5. Perform a Test Drive: Take the vehicle for a test drive to ensure that the issue has been resolved and that the check engine light does not reappear.

Cost to Fix P1467 2020 Chevrolet Silverado

The typical repair costs for addressing a P1467 code on a 2020 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, replacing a faulty purge pump can cost between $150 and $300 for the part, with additional labor costs of around $100 to $200. However, if the problem is related to wiring issues or vacuum leaks, the total repair costs may be higher. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's recommended to check with local shops for a more accurate estimate.

Tech Notes for P1467 2020 Chevrolet Silverado

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.

Need more information about the P1467 2020 Chevrolet Silverado code?

Need more information on how to fix the P1467 2020 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1467 2020 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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.

Discuss the causes and fixes for P1467 2020 Chevrolet Silverado OBDII Code

Code P1467 2020 Chevrolet Silverado comments

No comments found for this page.