AutoCodes – Ford – P0116 2008 Ford Fusion

P0116 2008 Ford Fusion Code - Engine Coolant Temperature Sensor 1 Circuit Range/Performance

Quick Answer

Indicates the engine coolant temperature rationality test has failed. Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) sensor, Faulty engine coolant thermostat. 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 2008 Ford Fusion indicates Engine Coolant Temperature Sensor 1 Circuit Range/Performance.
Common causes: Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) sensor, Faulty engine coolant thermostat.
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 Popularity 2,754

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0116 2008 Ford Fusion Description

Indicates the engine coolant temperature rationality test has failed. This DTC indicates that the ECT or cylinder head temperature (CHT) value is higher than the calibrated value and could prevent one or more on-board diagnostic (OBD) monitors from completing. The Powertrain Control Module (PCM) runs this logic after an engine off and a calibrated soak period(typically 6 hours). This soak period allows the intake air temperature (IAT) and the CHT or ECT to stabilize and not differ by more than a calibrated value. DTC P0116 sets when all of the following conditions are met: The ECT at engine start exceeds the IAT at engine start by more than a calibrated value, typically 17Â°C (30Â°F).

OBDII Code P0116 2008 Ford Fusion - Engine Coolant Temperature Sensor 1 Circuit Range/Performance - AutoCodes.com — P0116 2008 Ford Fusion Code - Engine Coolant Temperature Sensor 1 Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P0116 2008 Ford Fusion?

Low engine coolant level
Faulty Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) sensor
Faulty engine coolant thermostat
Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) sensor harness is open or shorted
Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) sensor circuit poor electrical connection

How to Fix the DTC P0116 2008 Ford Fusion?

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 does this mean?

Code Tech Notes

Start by checking for coolant leaks, if there are not leaks the thermostat might be stuck open or closed and may need to be replaced, you still have an issue the engine coolant temp sensor or cylinder head temp sensor.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0116 2008 Ford Fusion 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.

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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 P0116 2008 Ford Fusion Code

1. What does OBDII code P0116 on a 2008 Ford Fusion mean?

The code P0116 indicates an issue with the Engine Coolant Temperature Sensor 1 Circuit Range/Performance.

2. What are common symptoms of a P0116 code on a 2008 Ford Fusion?

Common symptoms include inaccurate temperature gauge readings, poor fuel economy, rough idling, and potential engine overheating.

3. What are possible causes of a P0116 code on a 2008 Ford Fusion?

Possible causes include a faulty engine coolant temperature sensor, wiring issues, a corroded connector, or a problem with the engine control module.

4. How can I diagnose a P0116 code on a 2008 Ford Fusion?

Diagnosis typically involves checking the coolant level, inspecting the sensor and its wiring for damage, and using a multimeter to test the sensor's resistance.

5. Can I drive my 2008 Ford Fusion with a P0116 code?

It's not recommended to drive the vehicle with a P0116 code, as it can lead to engine performance issues and potential overheating.

6. How can I repair a P0116 code on a 2008 Ford Fusion?

Repairing a P0116 code often involves replacing the engine coolant temperature sensor, repairing or replacing damaged wiring, and clearing the code with an OBDII scanner.

7. Is it possible to reset a P0116 code on a 2008 Ford Fusion without repairs?

While you can clear the code with an OBDII scanner, it's crucial to address the underlying issue causing the code to prevent further problems.

8. Will a P0116 code on a 2008 Ford Fusion affect emissions?

Yes, a P0116 code can affect emissions by causing the engine to run inefficiently, potentially leading to increased emissions.

9. How long does it typically take to repair a P0116 code on a 2008 Ford Fusion?

The repair time for a P0116 code can vary depending on the exact cause, but it may take anywhere from 30 minutes to a few hours to complete the necessary repairs.

10. Can a DIY enthusiast fix a P0116 code on a 2008 Ford Fusion?

If you have the necessary tools and knowledge, you may be able to fix a P0116 code yourself by replacing the engine coolant temperature sensor and addressing any wiring issues.