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Engine-Codes – Lincoln – P0117 Lincoln

P0117 Lincoln Code - Engine Coolant Temperature Sensor 1 Circuit Low

Quick Answer

The P0117 diagnostic trouble code (DTC) for Lincoln vehicles indicates a problem with the Engine Coolant Temperature (ECT) Sensor 1 Circuit being too low. Common causes include Faulty ECT sensor, Damaged or corroded wiring/connectors in the ECT sensor circuit, Low coolant level or coolant leak affecting sensor readings. 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
P0117 Lincoln indicates Engine Coolant Temperature Sensor 1 Circuit Low.
Common causes
Common causes include Faulty ECT sensor, Damaged or corroded wiring/connectors in the ECT sensor circuit, Low coolant level or coolant leak affecting sensor readings.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0117 Lincoln Description

The P0117 diagnostic trouble code (DTC) for Lincoln vehicles indicates a problem with the Engine Coolant Temperature (ECT) Sensor 1 Circuit being too low. The ECT sensor is a crucial component of the engine management system, as it measures the temperature of the engine coolant. This information is used by the engine control module (ECM) to adjust fuel delivery, ignition timing, and other parameters to ensure optimal engine performance and efficiency.

OBDII Code P0117 Lincoln - Engine Coolant Temperature Sensor 1 Circuit Low
P0117 Lincoln Code - Engine Coolant Temperature Sensor 1 Circuit Low

Common Causes of P0117 Lincoln

  1. Faulty ECT sensor
  2. Damaged or corroded wiring/connectors in the ECT sensor circuit
  3. Low coolant level or coolant leak affecting sensor readings
  4. ECM software or hardware issues
  5. Engine overheating causing sensor malfunction

Symptoms of P0117 Lincoln

  1. Check Engine Light illuminated on the dashboard
  2. Poor fuel economy
  3. Engine running hotter or colder than normal
  4. Rough idling or stalling
  5. Hesitation or lack of power during acceleration

How to Fix P0117 Lincoln

  1. Begin by diagnosing the ECT sensor circuit using a multimeter to check for proper voltage and resistance.
  2. Inspect the wiring and connectors for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the ECT sensor itself by checking its resistance at different temperatures to ensure it is functioning correctly.
  4. If the ECT sensor is faulty, replace it with a new one following manufacturer's guidelines.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0117 Lincoln

The cost of repairing a P0117 code for a Lincoln vehicle can vary depending on the specific model and year. On average, the parts for replacing an ECT sensor can range from $50 to $100, while labor costs can add another $100 to $200. Overall, the total repair cost for this issue may fall between $150 and $300. It is important to note that these estimates are general and actual costs may differ based on location, vehicle specifications, and labor rates at the auto repair shop. It is recommended to obtain quotes from local shops for a more accurate estimate.

What does this mean?

Tech Notes for P0117 Lincoln

Start by checking for coolant leaks, and if there are no leaks, the thermostat might be stuck closed and need replacement. If the problem persists, change the Engine Coolant Temperature (ECT) sensor.

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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.

Frequently Asked Questions about P0117 Lincoln Code

1. What are the common symptoms of OBDII code P0117 in a Lincoln related to the Engine Coolant Temperature Sensor 1 Circuit Low?

The common symptoms include poor fuel economy, rough idling, engine overheating, and the temperature gauge reading inaccurately.

2. What are the possible causes of OBDII code P0117 in a Lincoln?

Possible causes include a faulty engine coolant temperature sensor, damaged or corroded sensor wiring, issues with the coolant temperature sensor connector, or a problem with the engine's computer system.

3. How can I diagnose the cause of OBDII code P0117 in my Lincoln?

You can diagnose the issue by checking the engine coolant level, inspecting the coolant temperature sensor and its wiring for damage, testing the sensor's resistance, and using a scan tool to monitor the sensor's readings.

4. Can I drive my Lincoln with OBDII code P0117 present?

It is not recommended to drive your Lincoln with code P0117 present as it can lead to engine overheating and potentially cause further damage to the vehicle.

5. How can I repair OBDII code P0117 in my Lincoln?

To repair code P0117, you may need to replace the engine coolant temperature sensor, repair or replace damaged wiring, ensure proper connector connection, and clear the trouble codes with a scan tool.

6. Will resetting the trouble codes make OBDII code P0117 in my Lincoln go away?

Resetting the trouble codes may temporarily remove the check engine light, but if the underlying issue causing code P0117 is not addressed, the code is likely to reappear.

7. How much does it typically cost to repair OBDII code P0117 in a Lincoln?

The cost of repairing code P0117 can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Can a DIY enthusiast fix OBDII code P0117 in a Lincoln?

Yes, if you have the necessary tools and knowledge, you may be able to diagnose and repair code P0117 yourself by replacing the engine coolant temperature sensor or repairing wiring issues.

9. Are there any preventive measures to avoid OBDII code P0117 in a Lincoln?

Regular maintenance, such as checking coolant levels and monitoring the engine temperature gauge, can help prevent issues with the engine coolant temperature sensor that may trigger code P0117.

10. How urgent is it to address OBDII code P0117 in a Lincoln?

It is important to address code P0117 promptly to prevent potential engine damage and ensure the proper functioning of your Lincoln's engine cooling system.

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