P0116 2016 GMC Sierra Code - Engine Coolant Temperature Sensor Performance
Quick Answer
The Engine Coolant Temperature (ECT) sensor is a variable resistor that measures the temperature of the engine coolant. Common causes include Low engine coolant level, Leaking or stuck open thermostat, Faulty Engine Coolant Temperature (ECT) 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
- P0116 2016 GMC Sierra indicates Engine Coolant Temperature Sensor Performance.
- Common causes
- Common causes include Low engine coolant level, Leaking or stuck open thermostat, Faulty Engine Coolant Temperature (ECT) 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.
Code P0116 2016 GMC Sierra Description
The ECM uses this high side coolant rationality diagnostic to determine if the input from the ECT sensor is skewed warmer than normal. The internal clock of the ECM will record the amount of time the ignition is OFF. If the calibrated ignition OFF time is met at start-up, the ECM will compare the temperature difference between the ECT and the intake air temperature (IAT) to determine if the temperatures are within an acceptable operating range of each other. The Diagnostic Trouble Code (DTC) will be set when the ECM detects a temperature difference at power-up that indicates that the ECT sensor is 30° C (86° F) warmer than the IAT sensor for less than 1 s.
What are the Possible Causes of the DTC P0116 2016 GMC Sierra?
- Low engine coolant level
- Leaking or stuck open thermostat
- Faulty Engine Coolant Temperature (ECT) sensor
- Engine Coolant Temperature sensor harness is open or shorted
- Engine Coolant Temperature sensor electrical circuit poor connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0116 2016 GMC Sierra?
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 P0116 2016 GMC Sierra 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 P0116 2016 GMC Sierra code?
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Frequently Asked Questions about P0116 2016 GMC Sierra Code
1. What are the common symptoms of OBDII code P0116 in a 2016 GMC Sierra?
The common symptoms of code P0116 include poor fuel economy, overheating engine, rough idling, and the Check Engine light being illuminated on the dashboard.
2. What does OBDII code P0116 on a 2016 GMC Sierra indicate?
Code P0116 indicates a problem with the Engine Coolant Temperature (ECT) sensor performance. The ECT sensor is responsible for monitoring the temperature of the engine coolant.
3. What are the possible causes of OBDII code P0116 in a 2016 GMC Sierra?
Possible causes of code P0116 include a faulty ECT sensor, wiring issues in the ECT circuit, low coolant levels, a stuck thermostat, or a malfunctioning engine control module (ECM).
4. How can I diagnose the cause of OBDII code P0116 in my 2016 GMC Sierra?
You can diagnose the cause of code P0116 by checking the ECT sensor's electrical connections, testing the sensor's resistance with a multimeter, inspecting the coolant level and thermostat, and scanning the ECM for any related fault codes.
5. Can I still drive my 2016 GMC Sierra with OBDII code P0116?
It is not recommended to drive your vehicle with code P0116 present, as it can lead to engine overheating and potential damage. It is best to address the issue promptly to avoid further complications.
6. How can I repair OBDII code P0116 on my 2016 GMC Sierra?
To repair code P0116, you may need to replace the faulty ECT sensor, repair any damaged wiring in the circuit, refill the coolant if levels are low, replace a stuck thermostat, or reprogram the ECM if necessary.
7. Will resetting the Check Engine light resolve OBDII code P0116 in my 2016 GMC Sierra?
Simply resetting the Check Engine light will not fix the underlying issue causing code P0116. You need to diagnose the problem, make necessary repairs, and then clear the code using a diagnostic scanner.
8. How much does it typically cost to repair OBDII code P0116 on a 2016 GMC Sierra?
The cost of repairing code P0116 can vary depending on the exact cause of the issue. Replacing the ECT sensor or repairing wiring may cost anywhere from $100 to $300, excluding labor charges.
9. Can a DIY enthusiast fix OBDII code P0116 on a 2016 GMC Sierra?
If you have experience working on vehicles and access to the necessary tools, you may be able to fix code P0116 yourself by following repair guides and tutorials. However, if you are unsure, it is best to consult a professional mechanic.
10. How important is it to address OBDII code P0116 promptly in a 2016 GMC Sierra?
It is crucial to address code P0116 promptly to prevent potential engine damage, overheating, reduced fuel efficiency, and other related issues. Ignoring the problem can lead to more severe and costly repairs in the long run.
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