Engine-CodesGMC – P1467 2019 GMC Sierra

P1467 2019 GMC Sierra Code - EVAP Purge Pump Underspeed

Quick Answer

The P1467 code on a 2019 GMC Sierra indicates a problem with the EVAP (Evaporative Emission Control System) purge pump underspeed. Common causes include Faulty EVAP purge pump, Wiring or connector issues, Vacuum leak in the EVAP system. 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 2019 GMC Sierra indicates EVAP Purge Pump Underspeed.
Common causes
Common causes include Faulty EVAP purge pump, Wiring or connector issues, Vacuum leak in the EVAP system.
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 17, 2024
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Code P1467 2019 GMC Sierra Description

The P1467 code on a 2019 GMC Sierra indicates a problem with the EVAP (Evaporative Emission Control System) purge pump underspeed. The EVAP system is responsible for capturing and storing fuel vapors to prevent them from escaping into the atmosphere. The purge pump is a crucial component of this system as it helps to control the flow of fuel vapors from the charcoal canister to the engine for combustion.

OBDII Code P1467 2019 GMC Sierra - EVAP Purge Pump Underspeed
P1467 2019 GMC Sierra Code - EVAP Purge Pump Underspeed

Common Causes of P1467 2019 GMC Sierra

  1. Faulty EVAP purge pump
  2. Wiring or connector issues
  3. Vacuum leak in the EVAP system
  4. Faulty EVAP canister
  5. Clogged EVAP lines

Symptoms of P1467 2019 GMC Sierra

  1. Check engine light illuminated
  2. Decreased fuel efficiency
  3. Rough idle or stalling
  4. Strong fuel odor
  5. Failed emissions test

How to Fix P1467 2019 GMC Sierra

  1. Diagnose the issue using a scan tool to confirm the P1467 code and pinpoint the exact cause of the problem.
  2. Inspect the EVAP purge pump, wiring, and connectors for any signs of damage or wear.
  3. Check for vacuum leaks in the EVAP system and repair as necessary.
  4. Test the EVAP canister and replace if faulty.
  5. Clear the code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1467 2019 GMC Sierra

The typical repair costs for addressing an EVAP purge pump underspeed issue can vary depending on the specific cause of the problem. In general, replacing a faulty purge pump can cost between $150 and $300, including parts and labor. Additional costs may apply if other components need to be replaced or if extensive diagnostic work is required. It's important to consult with a qualified mechanic or auto repair shop for an accurate estimate based on the specific circumstances of your vehicle. Keep in mind that labor rates can vary based on location, vehicle make and model, and other factors.

Tech Notes for P1467 2019 GMC Sierra

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.

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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 2019 GMC Sierra Code

1. What does the OBDII code P1467 mean on a 2019 GMC Sierra?

P1467 indicates an "EVAP Purge Pump Underspeed" condition, meaning the purge pump in the vehicle's evaporative emission control system is operating slower than expected.

2. What are the common symptoms of the P1467 code?

Symptoms may include an illuminated check engine light, reduced fuel efficiency, noticeable fuel odors, or potential difficulty passing an emissions test.

3. What causes the P1467 code to appear?

Common causes include a faulty EVAP purge pump, electrical issues such as damaged wiring or connectors, a clogged EVAP system, or a malfunctioning purge valve.

4. Can I drive my 2019 GMC Sierra with the P1467 code?

While the vehicle may remain drivable, it's not recommended to ignore the issue. Prolonged operation with this code could lead to increased emissions or further damage to the EVAP system.

5. How do I diagnose the P1467 code?

Start by inspecting the EVAP purge pump, checking for damaged wiring or loose connections. Use a scan tool to monitor pump speed and related system parameters for abnormalities.

6. How can I fix the P1467 code on my GMC Sierra?

Repairs may involve replacing the EVAP purge pump, cleaning clogged lines, repairing damaged wiring, or replacing a malfunctioning purge valve if necessary.

7. How much does it cost to repair the P1467 code?

The cost varies depending on the exact issue. Replacing an EVAP purge pump typically ranges between $150 and $400, including parts and labor.

8. Can a loose gas cap trigger the P1467 code?

A loose gas cap is unlikely to cause this specific code. However, it can trigger other EVAP-related codes, so always ensure the gas cap is properly tightened.

9. What tools are needed to troubleshoot the P1467 code?

You'll need an OBDII scan tool, a multimeter for electrical checks, and possibly a smoke machine to detect leaks in the EVAP system.

10. Does the P1467 code affect emissions testing?

Yes, this code can cause the vehicle to fail an emissions test due to improper operation of the EVAP system, which controls fuel vapor emissions.

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