P0071 2018 GMC Sierra Code - Ambient Air Temperature Sensor Performance
Quick Answer
The P0071 code for a 2018 GMC Sierra indicates a problem with the Ambient Air Temperature Sensor performance. Common causes include Faulty ambient air temperature sensor, Damaged wiring or connectors related to the sensor, Corrosion or contamination affecting the sensor. 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
- P0071 2018 GMC Sierra indicates Ambient Air Temperature Sensor Performance.
- Common causes
- Common causes include Faulty ambient air temperature sensor, Damaged wiring or connectors related to the sensor, Corrosion or contamination affecting the sensor.
- 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.
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Code P0071 2018 GMC Sierra Description
The P0071 code for a 2018 GMC Sierra indicates a problem with the Ambient Air Temperature Sensor performance. This sensor is responsible for measuring the temperature of the air outside the vehicle, which is crucial for the engine control module to adjust various parameters such as air/fuel mixture, ignition timing, and emissions control. When this sensor malfunctions or fails to provide accurate readings, it can lead to a range of issues affecting the vehicle's performance and efficiency.
Common Causes of P0071 2018 GMC Sierra
- Faulty ambient air temperature sensor
- Damaged wiring or connectors related to the sensor
- Corrosion or contamination affecting the sensor
- Issues with the engine control module
- Environmental factors such as extreme temperatures affecting sensor performance
Symptoms of P0071 2018 GMC Sierra
- Check Engine Light is illuminated
- Inaccurate temperature readings on the dashboard display
- Decreased fuel efficiency
- Engine running rich or lean
- Rough idle or stalling
How to Fix P0071 2018 GMC Sierra
- Begin by locating the ambient air temperature sensor on the vehicle (typically near the front grille or bumper).
- Inspect the sensor and its wiring for any visible damage, corrosion, or contamination.
- Test the sensor using a multimeter to check for proper voltage and resistance readings.
- Replace the ambient air temperature sensor if it is found to be faulty or not functioning correctly.
- Clear the diagnostic trouble codes using an OBD-II scanner and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0071 2018 GMC Sierra
The cost of repairing a P0071 code for a 2018 GMC Sierra can vary depending on the specific cause of the issue. On average, the replacement cost of an ambient air temperature sensor ranges from $50 to $150, depending on the brand and quality of the sensor. Labor costs for this repair can range from $80 to $150 per hour, with the total repair time estimated to be around 1-2 hours. Therefore, the total cost for resolving this issue can range from $130 to $450, including parts and labor. It is advisable to consult with a qualified mechanic or auto repair shop for an accurate cost estimate based on the specific vehicle and location.
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Frequently Asked Questions about P0071 2018 GMC Sierra Code
1. What are the common symptoms of OBDII code P0071 in a 2018 GMC Sierra related to the Ambient Air Temperature Sensor Performance?
The common symptoms include inaccurate temperature readings on the vehicle's display, issues with the climate control system, and potential effects on engine performance.
2. What are the possible causes of OBDII code P0071 in a 2018 GMC Sierra?
Possible causes include a faulty ambient air temperature sensor, wiring or connector issues, a damaged sensor, or a malfunction in the sensor circuit.
3. How can I diagnose the Ambient Air Temperature Sensor for performance issues related to code P0071 in my 2018 GMC Sierra?
You can diagnose the sensor by visually inspecting its wiring and connector, testing the sensor's resistance with a multimeter, and checking for any signs of physical damage to the sensor itself.
4. Can a bad Ambient Air Temperature Sensor affect the overall performance of my 2018 GMC Sierra?
Yes, a malfunctioning ambient air temperature sensor can impact the vehicle's fuel efficiency, emissions, and overall engine performance due to incorrect temperature readings provided to the engine control module.
5. What are some repair tips for fixing OBDII code P0071 in a 2018 GMC Sierra?
Repair tips include checking and cleaning the sensor connection, replacing the ambient air temperature sensor if necessary, and ensuring proper wiring and circuit integrity.
6. Is it safe to drive my 2018 GMC Sierra with OBDII code P0071 related to the Ambient Air Temperature Sensor Performance?
It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to prevent any potential negative impacts on performance and fuel efficiency.
7. How much does it typically cost to repair OBDII code P0071 in a 2018 GMC Sierra at a professional mechanic's shop?
The cost of repairing this code can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.
8. Can I reset the OBDII code P0071 in my 2018 GMC Sierra by disconnecting the battery?
While disconnecting the battery may reset the code temporarily, it is recommended to diagnose and fix the underlying issue causing the code to prevent it from reoccurring.
9. Will OBDII code P0071 in a 2018 GMC Sierra turn off on its own over time?
The code may turn off on its own if the issue is temporary, but it is best to diagnose and address the root cause to prevent potential long-term problems.
10. How can I prevent OBDII code P0071 related to the Ambient Air Temperature Sensor in my 2018 GMC Sierra from happening again in the future?
Regularly inspecting and maintaining the ambient air temperature sensor, keeping the sensor and its connections clean, and addressing any issues promptly can help prevent the code from recurring.
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