AutoCodes – Chevrolet – P1468 2019 Chevrolet Silverado

P1468 2019 Chevrolet Silverado Code - EVAP Purge Pump Overspeed

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 High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1468 2019 Chevrolet Silverado indicates EVAP Purge Pump Overspeed.
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: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 327

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 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 P1468 2019 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 is greater than 240 RPM when commanded off for greater than 5 s.

OBDII Code P1468 2019 Chevrolet Silverado - EVAP Purge Pump Overspeed - AutoCodes.com — P1468 2019 Chevrolet Silverado Code - EVAP Purge Pump Overspeed

What does this mean?

What are the Possible Causes of the DTC P1468 2019 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 P1468 2019 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1468 2019 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.

Need more information about the P1468 2019 Chevrolet Silverado code?

Need more information on how to fix the P1468 2019 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 P1468 2019 Chevrolet Silverado Code

1. What does OBDII code P1468 mean on a 2019 Chevrolet Silverado?

- This code indicates an issue with the EVAP purge pump overspeed.

2. What are the common symptoms of EVAP Purge Pump Overspeed (P1468) in a 2019 Chevrolet Silverado?

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

3. What are the potential causes of OBDII code P1468 in a 2019 Chevrolet Silverado?

- The causes may include a faulty EVAP purge solenoid, a clogged or damaged purge valve, or wiring/connectivity issues.

4. How can I diagnose the EVAP Purge Pump Overspeed issue (P1468) in my 2019 Chevrolet Silverado?

- Diagnosing this issue typically involves checking the EVAP system components for proper functioning, inspecting wiring for damage, and testing the purge pump and solenoid.

5. Can I continue driving my 2019 Chevrolet Silverado with OBDII code P1468?

- It is not recommended to continue driving with this code as it can lead to potential fuel system issues and may affect the vehicle's performance.

6. How can I repair the EVAP Purge Pump Overspeed problem (P1468) in my 2019 Chevrolet Silverado?

- Repair may involve replacing the EVAP purge solenoid, clearing obstructions in the purge valve, addressing wiring problems, or seeking professional help for thorough diagnosis and repair.

7. Are there any DIY tips for fixing OBDII code P1468 in a 2019 Chevrolet Silverado?

- DIY tips may include checking for loose connections, visually inspecting for damaged components, and ensuring proper installation of replacement parts.

8. How much does it cost to fix the EVAP Purge Pump Overspeed issue (P1468) in a 2019 Chevrolet Silverado?

- The cost of repair can vary depending on the specific cause of the issue, parts needed for replacement, and labor charges. It is advisable to get a few quotes from trusted mechanics.

9. Is it possible to prevent OBDII code P1468 from appearing in my 2019 Chevrolet Silverado?

- Regular maintenance of the EVAP system, prompt addressing of any related issues, and using high-quality fuel can help prevent the recurrence of this code.

10. Can a faulty gas cap trigger the OBDII code P1468 in a 2019 Chevrolet Silverado?

- While a faulty gas cap is not a common cause of P1468, it is still advisable to ensure that the gas cap is properly sealed to prevent any potential EVAP system issues.