P146A 2021 Chevrolet Silverado Code - EVAP Purge Pump Speed Too High
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
- P146A 2021 Chevrolet Silverado indicates EVAP Purge Pump Speed Too High.
- 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.
Code P146A 2021 Chevrolet Silverado Description
What are the Possible Causes of the DTC P146A 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 P146A 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 P146A 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 P146A 2021 Chevrolet Silverado code?
Need more information on how to fix the P146A 2021 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P146A 2021 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P146A 2021 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P146A on a 2021 Chevrolet Silverado?
- Common symptoms include the check engine light illuminating, decreased fuel efficiency, and potential rough idling.
2. What does the OBDII code P146A on a 2021 Chevrolet Silverado indicate?
- The code P146A indicates that the EVAP purge pump speed is too high, suggesting a possible issue with the evaporative emission control system.
3. What are some possible causes of OBDII code P146A on a 2021 Chevrolet Silverado?
- Possible causes include a faulty EVAP purge solenoid, a vacuum leak in the EVAP system, or a malfunctioning EVAP purge pump.
4. How can I diagnose the OBDII code P146A on my 2021 Chevrolet Silverado?
- Diagnosing the code may involve checking the EVAP system for leaks, testing the purge pump's operation, and inspecting the purge solenoid for proper function.
5. Can I continue driving my 2021 Chevrolet Silverado with OBDII code P146A?
- It is not recommended to continue driving with the code present, as it can lead to increased emissions, decreased fuel economy, and potential damage to the vehicle's emissions system.
6. How can I repair OBDII code P146A on my 2021 Chevrolet Silverado?
- Repairs may involve replacing the EVAP purge pump, addressing any leaks in the system, checking and replacing the purge solenoid if necessary, and clearing the trouble code.
7. Are there any DIY tips for troubleshooting OBDII code P146A on a 2021 Chevrolet Silverado?
- DIY tips may include visually inspecting the EVAP system for damage, checking for loose or disconnected hoses, and ensuring the gas cap is properly sealed.
8. How much does it typically cost to repair OBDII code P146A on a 2021 Chevrolet Silverado?
- The cost of repairs can vary depending on the specific issue, but it may range from $100 to $500 or more, including parts and labor.
9. Can a mechanic reset the OBDII code P146A on my 2021 Chevrolet Silverado without fixing the underlying issue?
- While a mechanic can clear the trouble code, it is important to address the root cause to prevent the code from reappearing and potentially causing further issues.
10. Is OBDII code P146A a common issue in 2021 Chevrolet Silverado vehicles?
- While it may not be as common as some other codes, issues with the EVAP system can occur in any vehicle, including the 2021 Chevrolet Silverado. Regular maintenance can help prevent such problems.
Discuss the causes and fixes for P146A 2021 Chevrolet Silverado OBDII Code
Code P146A 2021 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
