P040E 2016 Chevrolet Silverado Code - Exhaust Gas Recirculation Temperature Sensor 2 Circuit Erratic
Quick Answer
The Exhaust Gas Recirculation (EGR) temperature sensors are variable resistors that measure the temperature of the exhaust gas at the inlet and outlet of the EGR cooler. Common causes include Faulty Exhaust Gas Recirculation (EGR) Temperature Sensor 2, Exhaust Gas Recirculation Temperature Sensor 2 harness is open or shorted, Exhaust Gas Recirculation Temperature Sensor 2 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
- P040E 2016 Chevrolet Silverado indicates Exhaust Gas Recirculation Temperature Sensor 2 Circuit Erratic.
- Common causes
- Common causes include Faulty Exhaust Gas Recirculation (EGR) Temperature Sensor 2, Exhaust Gas Recirculation Temperature Sensor 2 harness is open or shorted, Exhaust Gas Recirculation Temperature Sensor 2 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 P040E 2016 Chevrolet Silverado Description
What are the Possible Causes of the DTC P040E 2016 Chevrolet Silverado?
- Faulty Exhaust Gas Recirculation (EGR) Temperature Sensor 2
- Exhaust Gas Recirculation Temperature Sensor 2 harness is open or shorted
- Exhaust Gas Recirculation Temperature Sensor 2 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P040E 2016 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 P040E 2016 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.
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Frequently Asked Questions about P040E 2016 Chevrolet Silverado Code
1. What does the OBDII code P040E mean on a 2016 Chevrolet Silverado?
P040E indicates an issue with the Exhaust Gas Recirculation (EGR) Temperature Sensor 2 circuit, specifically that it is reading erratic or inconsistent values.
2. What are the symptoms of code P040E on a 2016 Chevrolet Silverado?
Symptoms may include a Check Engine Light, reduced engine performance, poor fuel efficiency, rough idling, or increased emissions.
3. What causes the P040E code on a 2016 Chevrolet Silverado?
Common causes include a faulty EGR Temperature Sensor 2, damaged or corroded wiring, loose electrical connections, or a malfunctioning EGR valve.
4. Can I drive my 2016 Chevrolet Silverado with code P040E?
While it may still be drivable, driving with this code can lead to increased emissions, reduced performance, and potential long-term damage to the EGR system.
5. How do I fix the P040E code on a 2016 Chevrolet Silverado?
Repairs may involve replacing the EGR Temperature Sensor 2, repairing damaged wiring, cleaning or replacing the EGR valve, or updating the vehicle’s engine software.
6. How much does it cost to fix the P040E code on a 2016 Chevrolet Silverado?
Repair costs can vary but typically range from $150 to $400, depending on whether the sensor, wiring, or other components need replacement.
7. How can I diagnose the P040E code on my 2016 Chevrolet Silverado?
Start by using an OBDII scanner to confirm the code, inspect the EGR Temperature Sensor 2 and its wiring for damage, and test the sensor with a multimeter if necessary.
8. Can a dirty EGR valve cause the P040E code on a 2016 Chevrolet Silverado?
Yes, a clogged or dirty EGR valve can cause erratic readings from the EGR Temperature Sensor 2, triggering this code.
9. Where is the EGR Temperature Sensor 2 located on a 2016 Chevrolet Silverado?
The EGR Temperature Sensor 2 is typically located near the EGR valve or in the EGR cooler, depending on the engine configuration.
10. Will clearing the P040E code fix the problem on a 2016 Chevrolet 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.
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