Engine-CodesChevrolet – P0118 2016 Chevrolet Silverado

P0118 2016 Chevrolet Silverado Code - Engine Coolant Temperature Circuit High Input

Quick Answer

The P0118 code for a 2016 Chevrolet Silverado indicates an issue with the Engine Coolant Temperature (ECT) Circuit High Input. Common causes include Faulty Engine Coolant Temperature sensor, Corroded or loose wiring connections, Malfunctioning Engine Control Module (ECM). 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
P0118 2016 Chevrolet Silverado indicates Engine Coolant Temperature Circuit High Input.
Common causes
Common causes include Faulty Engine Coolant Temperature sensor, Corroded or loose wiring connections, Malfunctioning Engine Control Module (ECM).
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P0118 2016 Chevrolet Silverado Description

The P0118 code for a 2016 Chevrolet Silverado indicates an issue with the Engine Coolant Temperature (ECT) Circuit High Input. The Engine Coolant Temperature sensor is responsible for measuring the temperature of the engine coolant and sending this information to the Engine Control Module (ECM) to regulate various engine functions. When this sensor detects a high input signal, it means that the engine coolant temperature is higher than normal, which can lead to a variety of performance issues.

OBDII Code P0118 2016 Chevrolet Silverado - Engine Coolant Temperature Circuit High Input
P0118 2016 Chevrolet Silverado Code - Engine Coolant Temperature Circuit High Input

Common Causes of P0118 2016 Chevrolet Silverado

  1. Faulty Engine Coolant Temperature sensor
  2. Corroded or loose wiring connections
  3. Malfunctioning Engine Control Module (ECM)
  4. Coolant system issues, such as low coolant level or air pockets
  5. Electrical issues, such as a short circuit or damaged wiring harness

Symptoms of P0118 2016 Chevrolet Silverado

  1. Engine overheating
  2. Poor fuel economy
  3. Rough idling or stalling
  4. Check Engine Light illuminated
  5. Loss of engine power

How to Fix P0118 2016 Chevrolet Silverado

  1. Begin by checking the coolant level and ensuring there are no leaks in the system.
  2. Inspect the wiring harness and connectors for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the Engine Coolant Temperature sensor using a multimeter to determine if it is providing accurate readings. Replace the sensor if it is faulty.
  4. Clear the diagnostic trouble codes using a scan tool and monitor the ECT sensor readings to ensure they are within the normal range.
  5. If the issue persists, further diagnostics may be required to check for ECM malfunctions or other underlying problems.

Cost to Fix P0118 2016 Chevrolet Silverado

The typical repair costs for addressing a P0118 code on a 2016 Chevrolet Silverado can range from $100 to $300, depending on the exact cause of the issue and whether any parts need to be replaced. This estimate includes the cost of diagnostic testing, labor, and potentially a new Engine Coolant Temperature sensor. However, it is important to note that prices can vary significantly based on the specific diagnosis time and labor rates at different auto repair shops. It is recommended to obtain quotes from local shops to get a more accurate estimate for your specific situation.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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