AutoCodes – Chevrolet – P1468 2021 Chevrolet Silverado

P1468 2021 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 2021 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 400

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 2021 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 2021 Chevrolet Silverado - EVAP Purge Pump Overspeed - AutoCodes.com — P1468 2021 Chevrolet Silverado Code - EVAP Purge Pump Overspeed

What does this mean?

What are the Possible Causes of the DTC P1468 2021 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 2021 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 2021 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 2021 Chevrolet Silverado 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 P1468 2021 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P1468 in a 2021 Chevrolet Silverado?

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

2. What does the OBDII code P1468 on a 2021 Chevrolet Silverado indicate?

- P1468 indicates an issue with the EVAP purge pump overspeed, meaning the purge pump is operating at a speed higher than the specified limit.

3. What are the possible causes of OBDII code P1468 in a 2021 Chevrolet Silverado?

- Possible causes can include a faulty EVAP purge solenoid, a clogged EVAP canister, a malfunctioning EVAP purge pump, or a damaged wiring harness.

4. How can I diagnose the OBDII code P1468 in my 2021 Chevrolet Silverado?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, checking the EVAP system components for any visible damage, and testing the purge pump's operation.

5. What are the repair options for addressing OBDII code P1468 in a 2021 Chevrolet Silverado?

- Repairs may involve replacing the EVAP purge solenoid, cleaning or replacing the EVAP canister, testing and potentially replacing the EVAP purge pump, or repairing any damaged wiring connections.

6. Can I continue driving my 2021 Chevrolet Silverado with OBDII code P1468?

- It is generally not recommended to continue driving with this code present, as it can affect the vehicle's performance and emissions. It's best to address the issue promptly.

7. How much does it typically cost to repair OBDII code P1468 in a 2021 Chevrolet Silverado?

- Repair costs can vary depending on the exact cause of the issue and the necessary parts and labor. It is advisable to consult a professional mechanic for an accurate estimate.

8. Are there any preventive maintenance steps to avoid OBDII code P1468 in a 2021 Chevrolet Silverado?

- Regularly inspecting and maintaining the EVAP system components, such as the purge pump and solenoid, can help prevent issues that may trigger code P1468.

9. Is it possible to reset the check engine light after addressing OBDII code P1468 in a 2021 Chevrolet Silverado?

- Yes, once the underlying issue has been resolved, the check engine light can be reset using an OBDII scanner or by disconnecting the vehicle's battery for a short period.

10. How long does it take to repair OBDII code P1468 in a 2021 Chevrolet Silverado?

- The repair time can vary based on the specific cause of the code and the complexity of the repair process. It's advisable to consult with a professional mechanic for an estimated repair timeline.