P1468 Chevrolet 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 Chevrolet 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.
Code P1468 Chevrolet Description
What are the Possible Causes of the DTC P1468 Chevrolet?
- 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 Chevrolet?
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 Chevrolet 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.
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Information for Specific Chevrolet Models
- P1468 2019 Chevrolet Silverado — EVAP Purge Pump Overspeed
- P1468 2020 Chevrolet Silverado — EVAP Purge Pump Overspeed
- P1468 2021 Chevrolet Silverado — EVAP Purge Pump Overspeed
- P1468 2022 Chevrolet Silverado — EVAP Purge Pump Overspeed
Frequently Asked Questions about P1468 Chevrolet Code
1. What does the OBDII code P1468 mean on a Chevrolet?
P1468 indicates an "EVAP Purge Pump Overspeed," which means the EVAP system's purge pump is operating at a higher speed than expected, possibly due to a malfunction.
2. What are the common symptoms of code P1468 in a Chevrolet?
Symptoms may include an illuminated check engine light, decreased fuel efficiency, difficulty starting the engine, and a noticeable fuel odor.
3. What causes the EVAP purge pump to overspeed in a Chevrolet?
Common causes include a faulty EVAP purge pump, a vacuum leak in the EVAP system, a clogged or damaged vent valve, or an issue with the purge pump control circuit.
4. Can I still drive my Chevrolet with a P1468 code?
While the vehicle may still be drivable, ignoring the issue can lead to increased emissions, poor fuel economy, and potential damage to the EVAP system.
5. How is the P1468 code diagnosed on a Chevrolet?
A technician will use a scan tool to read the code, perform a visual inspection of the EVAP system, check for vacuum leaks, and test the purge pump's operation and electrical connections.
6. What repairs are needed to fix the P1468 code on a Chevrolet?
Repairs may include replacing the EVAP purge pump, sealing vacuum leaks, cleaning or replacing the vent valve, or repairing damaged wiring in the purge pump circuit.
7. How much does it cost to fix a P1468 code on a Chevrolet?
Repair costs can vary depending on the root cause but typically range from $100 to $500, including parts and labor.
8. Can a loose gas cap trigger the P1468 code on a Chevrolet?
While a loose gas cap can trigger some EVAP-related codes, it is less likely to cause P1468, as this code specifically relates to the purge pump's operation.
9. How can I prevent the P1468 code from recurring on my Chevrolet?
Regularly inspect and maintain the EVAP system, ensure the gas cap is properly tightened, and address fuel system issues promptly.
10. Will clearing the P1468 code fix the problem on a Chevrolet?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.
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