P040E GMC 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 GMC 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 GMC Description
What are the Possible Causes of the DTC P040E GMC?
- 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 GMC?
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 GMC 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 P040E GMC code?
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Need Help with the Code?
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Information for Specific GMC Models
- P040E 2014 GMC Sierra — Exhaust Gas Recirculation Temperature Sensor 2 Circuit Erratic
- P040E 2015 GMC Sierra — Exhaust Gas Recirculation Temperature Sensor 2 Circuit Erratic
- P040E 2016 GMC Sierra — Exhaust Gas Recirculation Temperature Sensor 2 Circuit Erratic
- P040E 2017 GMC Sierra — Exhaust Gas Recirculation Temperature Sensor 2 Circuit Erratic
- P040E 2018 GMC Sierra — Exhaust Gas Recirculation Temperature Sensor 2 Circuit Erratic
Frequently Asked Questions about P040E GMC Code
1. What are the common symptoms of OBDII code P040E in a GMC vehicle?
The common symptoms of OBDII code P040E in a GMC vehicle include rough idling, decreased fuel efficiency, and the illumination of the check engine light.
2. What does the OBDII code P040E GMC indicate?
OBDII code P040E in a GMC vehicle indicates an erratic signal from the Exhaust Gas Recirculation (EGR) Temperature Sensor 2 circuit.
3. What are the possible causes of OBDII code P040E in a GMC vehicle?
Possible causes of OBDII code P040E in a GMC vehicle include a faulty EGR temperature sensor, wiring issues, or a problem with the EGR system's control module.
4. How can I diagnose the OBDII code P040E in my GMC vehicle?
To diagnose OBDII code P040E in your GMC vehicle, you can use an OBDII scanner to retrieve the code and then inspect the EGR temperature sensor and its wiring for any visible damage.
5. Can I continue driving my GMC vehicle with OBDII code P040E?
It is not recommended to continue driving your GMC vehicle with OBDII code P040E, as it can lead to poor engine performance and potential damage to other components over time.
6. How can I repair OBDII code P040E in my GMC vehicle?
To repair OBDII code P040E in your GMC vehicle, you may need to replace the faulty EGR temperature sensor, repair any damaged wiring, or reset the EGR system's control module.
7. Is it possible to reset OBDII code P040E in a GMC vehicle without repairs?
While you may be able to temporarily clear OBDII code P040E by resetting the vehicle's computer, it is important to address the underlying issue to prevent the code from reoccurring.
8. How much does it cost to fix OBDII code P040E in a GMC vehicle?
The cost to fix OBDII code P040E in a GMC vehicle can vary depending on the specific cause of the issue, but it may involve replacing the EGR temperature sensor or repairing the wiring, which can range from moderate to expensive.
9. Can a DIY enthusiast repair OBDII code P040E in a GMC vehicle?
A DIY enthusiast with the necessary tools and knowledge may be able to repair OBDII code P040E in a GMC vehicle by following the appropriate diagnostic procedures and replacing the faulty components.
10. Will fixing OBDII code P040E improve the performance of my GMC vehicle?
Fixing OBDII code P040E in your GMC vehicle can help restore engine performance, improve fuel efficiency, and prevent potential damage to other engine components in the long run.
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