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P1469 2019 Chevrolet Silverado Code - EVAP Purge Pump Speed Too Low

Quick Answer

The P1469 code on a 2019 Chevrolet Silverado indicates that the EVAP (Evaporative Emission Control System) purge pump speed is too low. Common causes include Malfunctioning Purge Pump: The purge pump itself may be faulty, causing it to operate at a lower speed than required, Clogged Charcoal Canister: A clogged charcoal canister can restrict the flow of vapors through the EVAP system, leading to a decrease in purge pump speed, Leak in EVAP System: A leak in the EVAP system can disrupt the proper flow of vapors, affecting the purge pump speed. 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
P1469 2019 Chevrolet Silverado indicates EVAP Purge Pump Speed Too Low.
Common causes
Common causes include Malfunctioning Purge Pump: The purge pump itself may be faulty, causing it to operate at a lower speed than required, Clogged Charcoal Canister: A clogged charcoal canister can restrict the flow of vapors through the EVAP system, leading to a decrease in purge pump speed, Leak in EVAP System: A leak in the EVAP system can disrupt the proper flow of vapors, affecting the purge pump speed.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P1469 2019 Chevrolet Silverado Description

The P1469 code on a 2019 Chevrolet Silverado indicates that the EVAP (Evaporative Emission Control System) purge pump speed is too low. 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 vapors from the charcoal canister to the engine for combustion. When the purge pump speed is too low, it can lead to issues with the proper functioning of the EVAP system, potentially causing emissions to exceed allowable limits.

OBDII Code P1469 2019 Chevrolet Silverado - EVAP Purge Pump Speed Too Low
P1469 2019 Chevrolet Silverado Code - EVAP Purge Pump Speed Too Low

Common Causes of P1469 2019 Chevrolet Silverado

  1. Malfunctioning Purge Pump: The purge pump itself may be faulty, causing it to operate at a lower speed than required.
  2. Clogged Charcoal Canister: A clogged charcoal canister can restrict the flow of vapors through the EVAP system, leading to a decrease in purge pump speed.
  3. Leak in EVAP System: A leak in the EVAP system can disrupt the proper flow of vapors, affecting the purge pump speed.
  4. Electrical Issues: Problems with the wiring or connectors related to the purge pump can also trigger this code.

Symptoms of P1469 2019 Chevrolet Silverado

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Decreased Fuel Efficiency: A malfunctioning EVAP system can lead to decreased fuel efficiency as fuel vapors are not being properly recycled.
  3. Rough Idling: The engine may experience rough idling or hesitation when the purge pump speed is too low.
  4. Stalling: In severe cases, the vehicle may stall while driving, especially at low speeds or when coming to a stop.

How to Fix P1469 2019 Chevrolet Silverado

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the specific code and pinpoint the exact cause of the problem.
  2. Inspect Purge Pump: Check the purge pump for any signs of damage or malfunction. Replace if necessary.
  3. Check Charcoal Canister: Inspect the charcoal canister for clogs or damage. Clean or replace as needed.
  4. Repair EVAP System: Address any leaks or issues in the EVAP system that may be affecting the purge pump speed.
  5. Clear Codes: After completing the repairs, clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1469 2019 Chevrolet Silverado

The cost of repairing a P1469 code on a 2019 Chevrolet Silverado can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost of parts for this repair can range from $100 to $300, with labor costs adding an additional $100 to $200. Overall, you can expect to pay anywhere from $200 to $500 for this repair. Keep in mind that prices may fluctuate based on the severity of the issue and the need for additional parts or services. It's recommended to consult with a trusted mechanic or auto repair shop for a more accurate estimate based on your specific circumstances.

What does this mean?

Tech Notes for P1469 2019 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.

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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 P1469 2019 Chevrolet Silverado Code

1. What does OBDII code P1469 on a 2019 Chevrolet Silverado indicate?

Code P1469 in a 2019 Chevrolet Silverado signifies an issue with the EVAP Purge Pump Speed being too low.

2. What are the common symptoms of OBDII code P1469 in a 2019 Chevrolet Silverado?

Common symptoms of code P1469 may include difficulty starting the vehicle, reduced fuel efficiency, and the illumination of the check engine light.

3. What are the possible causes of OBDII code P1469 in a 2019 Chevrolet Silverado?

Potential causes of code P1469 can include a faulty EVAP purge solenoid, a malfunctioning EVAP purge pump, a clogged EVAP system, or damaged wiring.

4. How can I diagnose the OBDII code P1469 in my 2019 Chevrolet Silverado?

Diagnosing code P1469 typically involves using an OBDII scanner to retrieve the code, inspecting the EVAP system for any visible damage, and testing the EVAP purge pump and solenoid for proper operation.

5. Can I continue driving my 2019 Chevrolet Silverado with OBDII code P1469?

While the vehicle may still be operable with code P1469 present, it is recommended to have the issue diagnosed and repaired promptly to prevent potential damage to the EVAP system.

6. How can I repair OBDII code P1469 in my 2019 Chevrolet Silverado?

Repairing code P1469 may involve replacing the EVAP purge pump, solenoid, or addressing any clogs or wiring issues in the EVAP system. It is advisable to consult a professional mechanic for accurate diagnosis and repair.

7. Is it possible to reset OBDII code P1469 in a 2019 Chevrolet Silverado without fixing the underlying issue?

Resetting the code without addressing the root cause is not recommended, as the issue will likely persist, and the check engine light will illuminate again once the problem is detected by the vehicle's system.

8. How much does it cost to fix OBDII code P1469 in a 2019 Chevrolet Silverado?

The cost of repairing code P1469 can vary depending on the specific cause of the issue, the parts needed for replacement, and the labor rates of the repair shop. It is advisable to obtain quotes from different mechanics for an accurate estimate.

9. Can a DIY enthusiast tackle the repair of OBDII code P1469 in a 2019 Chevrolet Silverado?

While some aspects of diagnosing and repairing code P1469 may be within reach of skilled DIY enthusiasts, dealing with the intricate components of the EVAP system may require specialized tools and expertise, making professional assistance advisable.

10. How can I prevent OBDII code P1469 from recurring in my 2019 Chevrolet Silverado?

To prevent the recurrence of code P1469, it is essential to perform regular maintenance on the EVAP system, such as checking for leaks, ensuring proper fuel cap closure, and promptly addressing any issues related to the EVAP components.

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