Engine-Codes.com
Engine-Codes – Ford – P0118 2007 Ford Fusion

P0118 2007 Ford Fusion Code - Engine Coolant Temperature Sensor Circuit High

Quick Answer

The P0118 code for a 2007 Ford Fusion indicates an issue with the Engine Coolant Temperature (ECT) Sensor Circuit registering a high voltage. Common causes include Faulty ECT sensor, Wiring issues or shorts in the ECT sensor circuit, Corrosion or poor connections in the sensor circuit. 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 2007 Ford Fusion indicates Engine Coolant Temperature Sensor Circuit High.
Common causes
Common causes include Faulty ECT sensor, Wiring issues or shorts in the ECT sensor circuit, Corrosion or poor connections in the sensor circuit.
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 Aug 30, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0118 2007 Ford Fusion Description

The P0118 code for a 2007 Ford Fusion indicates an issue with the Engine Coolant Temperature (ECT) Sensor Circuit registering a high voltage. The ECT sensor is responsible for measuring the temperature of the engine coolant and sending this information to the engine control module (ECM). When the ECM detects a high voltage signal from the ECT sensor, it triggers the P0118 code. This can lead to incorrect fuel delivery, ignition timing, and other crucial engine functions, which may result in poor performance, reduced fuel efficiency, and potential engine damage if not addressed promptly.

OBDII Code P0118 2007 Ford Fusion - Engine Coolant Temperature Sensor Circuit High
P0118 2007 Ford Fusion Code - Engine Coolant Temperature Sensor Circuit High

Common Causes of P0118 2007 Ford Fusion

  1. Faulty ECT sensor
  2. Wiring issues or shorts in the ECT sensor circuit
  3. Corrosion or poor connections in the sensor circuit
  4. Coolant leaks affecting sensor readings
  5. ECM malfunction

Symptoms of P0118 2007 Ford Fusion

  1. Engine overheating or running hot
  2. Poor fuel economy
  3. Rough idling or stalling
  4. Check Engine Light illuminated
  5. Inaccurate temperature gauge readings

How to Fix P0118 2007 Ford Fusion

  1. Begin by diagnosing the issue using a scan tool to confirm the P0118 code and pinpoint the exact cause.
  2. Inspect the ECT sensor and wiring for any visible damage or corrosion. Replace the sensor if necessary.
  3. Check the coolant level and system for leaks that may be affecting sensor readings.
  4. Test the ECT sensor circuit for proper voltage and resistance, repairing any wiring issues or shorts.
  5. Clear the code from the ECM and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0118 2007 Ford Fusion

The cost of repairing a P0118 code on a 2007 Ford Fusion can vary depending on the specific cause of the issue. Generally, replacing the ECT sensor can range from $50 to $150, while addressing wiring or coolant leaks may incur additional costs. Labor rates at auto repair shops typically range from $80 to $150 per hour, so the total repair cost could be between $150 to $400 or more. It's recommended to consult with a local mechanic for a more accurate estimate based on your vehicle's condition and location.

What does this mean?

Tech Notes for P0118 2007 Ford Fusion

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

Need more information about the P0118 2007 Ford Fusion code?

Need more information on how to fix the P0118 2007 Ford Fusion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0118 2007 Ford Fusion code diagnosed by a professional: Find a repair shop in your area

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 P0118 2007 Ford Fusion Code

1. What are the common symptoms of OBDII code P0118 in a 2007 Ford Fusion?

- Common symptoms include the engine overheating, inaccurate temperature gauge readings, poor fuel efficiency, and potential stalling or rough idling.

2. What does the OBDII code P0118 indicate in a 2007 Ford Fusion?

- The code indicates a high voltage signal from the Engine Coolant Temperature (ECT) sensor circuit, suggesting a problem with the sensor or its wiring.

3. What are the possible causes of OBDII code P0118 in a 2007 Ford Fusion?

- The potential causes include a faulty ECT sensor, a short or open circuit in the sensor wiring, a malfunctioning thermostat, or issues with the Engine Control Module (ECM).

4. How can I diagnose the OBDII code P0118 in my 2007 Ford Fusion?

- To diagnose P0118, you can use a scan tool to check the ECT sensor's voltage readings, inspect the sensor and its wiring for damage, and test the thermostat's functionality.

5. Can I drive my 2007 Ford Fusion with OBDII code P0118?

- It is not recommended to drive the vehicle with P0118, as it can lead to engine overheating and potential damage. It's best to address the issue promptly.

6. How can I repair OBDII code P0118 in a 2007 Ford Fusion?

- Repair options include replacing the faulty ECT sensor, repairing any damaged wiring, checking and potentially replacing the thermostat, and resetting the trouble code.

7. Is it possible to reset the OBDII code P0118 in a 2007 Ford Fusion?

- Yes, after addressing the underlying issue causing P0118, you can reset the trouble code using an OBDII scanner to clear the ECM's memory.

8. Will OBDII code P0118 affect my 2007 Ford Fusion's performance?

- Yes, P0118 can impact your vehicle's performance by causing issues like poor fuel efficiency, engine overheating, and potential drivability issues.

9. How much does it typically cost to repair OBDII code P0118 in a 2007 Ford Fusion?

- The cost of repairing P0118 can vary depending on the root cause, but it may range from $100 to $300 for parts and labor, excluding diagnostic fees.

10. Can a DIY enthusiast fix OBDII code P0118 in a 2007 Ford Fusion?

- Depending on your skill level, you may be able to address P0118 by replacing the ECT sensor or checking the wiring. However, more complex issues may require professional assistance.

Discuss the causes and fixes for P0118 2007 Ford Fusion OBDII Code

Submit a New Comment

Code P0118 2007 Ford Fusion comments

No comments found for this page.