P1402 2016 Chevrolet Silverado Code - Exhaust Gas Recirculation Supply Circuit
Quick Answer
The P1402 code on a 2016 Chevrolet Silverado indicates an issue with the Exhaust Gas Recirculation (EGR) supply circuit. Common causes include Faulty EGR valve, Damaged wiring or connectors, Blown fuse in the EGR circuit. 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
- P1402 2016 Chevrolet Silverado indicates Exhaust Gas Recirculation Supply Circuit.
- Common causes
- Common causes include Faulty EGR valve, Damaged wiring or connectors, Blown fuse in the EGR circuit.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P1402 2016 Chevrolet Silverado Description
The P1402 code on a 2016 Chevrolet Silverado indicates an issue with the Exhaust Gas Recirculation (EGR) supply circuit. The EGR system plays a crucial role in reducing emissions by recirculating a portion of the exhaust gases back into the engine cylinders. This helps lower combustion temperatures and reduce the formation of harmful nitrogen oxide (NOx) pollutants.
Common Causes of P1402 2016 Chevrolet Silverado
- Faulty EGR valve
- Damaged wiring or connectors
- Blown fuse in the EGR circuit
- Malfunctioning EGR solenoid
- Carbon buildup in the EGR system
Symptoms of P1402 2016 Chevrolet Silverado
- Rough idling
- Misfires
- Reduced fuel efficiency
- Decreased engine power
- Failed emissions test
How to Fix P1402 2016 Chevrolet Silverado
- Begin by diagnosing the specific cause of the issue using a scan tool to retrieve trouble codes and perform a visual inspection of the EGR components.
- Test the EGR valve, wiring, and solenoid for continuity and proper operation. Replace any faulty components as necessary.
- Clear the trouble codes from the vehicle's computer and reset the EGR system adaptations.
- Test drive the vehicle to ensure the issue has been resolved and that the P1402 code does not return.
- If the problem persists, consider seeking professional help from a certified mechanic for further diagnosis and repair.
Cost to Fix P1402 2016 Chevrolet Silverado
The cost of repairing a P1402 code on a 2016 Chevrolet Silverado can vary depending on the underlying cause of the issue. In general, the parts required for the repair, such as a new EGR valve or solenoid, can range from $100 to $300. Additionally, labor costs can add another $100 to $200 to the total repair bill. Overall, the total cost of addressing a P1402 code may range from $200 to $500, but it's important to note that these estimates can fluctuate based on factors such as location, labor rates, and specific vehicle requirements. It's recommended to consult with a local auto repair shop for a more accurate cost estimate.
Need more information about the P1402 2016 Chevrolet Silverado code?
Need more information on how to fix the P1402 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1402 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1402 2016 Chevrolet Silverado Code
1. What does the OBDII code P1402 mean on a 2016 Chevrolet Silverado?
The P1402 code indicates an issue with the Exhaust Gas Recirculation (EGR) Supply Circuit, which may involve a malfunction in the EGR system's wiring, components, or performance.
2. What are common symptoms of the P1402 code in a 2016 Chevy Silverado?
Symptoms may include reduced engine performance, rough idling, hesitation during acceleration, increased emissions, or the Check Engine Light being illuminated.
3. What causes the P1402 code to appear on a 2016 Chevrolet Silverado?
Common causes include a faulty EGR valve, clogged EGR passages, damaged wiring or connectors, or issues with the EGR control solenoid or sensor.
4. Can the P1402 code affect fuel economy in my 2016 Silverado?
Yes, a malfunctioning EGR system may reduce fuel efficiency due to improper combustion and increased engine workload.
5. How do I diagnose the P1402 code on a 2016 Chevrolet Silverado?
Diagnosis involves using an OBDII scan tool to confirm the code, visually inspecting the EGR system components and wiring, and testing the EGR valve and related sensors.
6. What repairs can fix the P1402 code on my 2016 Silverado?
Repairs may include cleaning or replacing the EGR valve, repairing damaged wiring or connectors, unclogging EGR passages, or replacing the EGR control solenoid.
7. Is it safe to drive my 2016 Chevrolet Silverado with the P1402 code?
Driving with the P1402 code is not recommended, as it can lead to reduced engine performance, higher emissions, and potential damage to other components.
8. How much does it cost to repair the P1402 code on a 2016 Chevy Silverado?
Repair costs vary depending on the issue, but EGR valve replacement typically ranges from $150 to $400, including parts and labor.
9. Can a dirty air filter cause the P1402 code in a 2016 Silverado?
While a dirty air filter is not a direct cause, it can contribute to performance issues that may exacerbate EGR system problems.
10. Will clearing the P1402 code with a scan tool fix the issue in my 2016 Silverado?
Clearing the code will turn off the Check Engine Light temporarily, but the underlying issue must be addressed to prevent the code from returning.
Discuss the causes and fixes for P1402 2016 Chevrolet Silverado OBDII Code
Code P1402 2016 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.