AutoCodes – Ford – P0119 2018 Ford F150

P0119 2018 Ford F150 Code - Engine Coolant Temperature Sensor 1 Circuit Intermittent

Quick Answer

The Engine Coolant Temperature (ECT) Sensor is a thermistor device in which resistance changes with temperature. Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) 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: P0119 2018 Ford F150 indicates Engine Coolant Temperature Sensor 1 Circuit Intermittent.
Common causes: Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) 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 211

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 Sep 22, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0119 2018 Ford F150 Description

The Engine Coolant Temperature (ECT) Sensor is a thermistor device in which resistance changes with temperature. The resistance of a thermistor decreases as the temperature increases, and the resistance increases as the temperature decreases. The varying resistance changes the voltage drop across the sensor pins and provides electrical signals to the Powertrain Control Module (PCM) corresponding to temperature.
Thermistor-type sensors are considered passive sensors. A passive sensor is connected to a voltage divider network so varying the resistance of the passive sensor causes a variation in total current flow. The voltage that is dropped across a fixed resistor (pull-up resister) in series with the sensor resistor determines the voltage signal at the PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.
The ECT Sensor is located in an engine coolant passage and measures the engine coolant temperature. The PCM uses the engine coolant temperature input for fuel control and for cooling fan control. The ECT Sensor can be a threaded or twist lock type.
This Diagnostic Trouble Code (DTC) is set when the ECT circuit is intermittently open or shorted while the engine is running.

OBDII Code P0119 2018 Ford F150 - Engine Coolant Temperature Sensor 1 Circuit Intermittent - AutoCodes.com — P0119 2018 Ford F150 Code - Engine Coolant Temperature Sensor 1 Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P0119 2018 Ford F150?

Low engine coolant level
Faulty Engine Coolant Temperature (ECT) Sensor
Faulty engine coolant thermostat
Engine Coolant Temperature Sensor harness is open or shorted
Engine Coolant Temperature Sensor circuit poor electrical connection

How to Fix the DTC P0119 2018 Ford F150?

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, 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0119 2018 Ford F150 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 P0119 2018 Ford F150 code?

Need more information on how to fix the P0119 2018 Ford F150 code? Get Access to Factory Service Manuals

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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 P0119 2018 Ford F150 Code

1. What are the common symptoms of OBDII code P0119 in a 2018 Ford F150?

The common symptoms include fluctuating temperature gauge readings, poor fuel economy, engine overheating, and possible stalling or rough idling.

2. What could cause the OBDII code P0119 to trigger in a 2018 Ford F150?

Possible causes include a faulty engine coolant temperature sensor, loose or damaged electrical connections, a problem with the sensor wiring, or a malfunction in the engine control module.

3. How serious is the Engine Coolant Temperature Sensor 1 Circuit Intermittent issue in a 2018 Ford F150?

While the vehicle may still be operable with this issue, it can lead to poor engine performance, reduced fuel efficiency, and potential engine damage if left unresolved.

4. Can I continue to drive my 2018 Ford F150 with the P0119 code present?

It is not recommended to drive your vehicle with the P0119 code active, as it can lead to potential engine overheating and other serious issues. It's best to address the problem promptly.

5. How can I diagnose and repair the Engine Coolant Temperature Sensor 1 Circuit Intermittent problem in my 2018 Ford F150?

Diagnosis typically involves checking the sensor, its wiring, and connections for any visible damage or issues. Repair may involve replacing the faulty sensor, fixing any damaged wiring, or addressing any connection problems.

6. Will resetting the OBDII code P0119 in my 2018 Ford F150 make the issue go away?

Resetting the code may temporarily turn off the check engine light, but it will not fix the underlying problem causing the code to trigger. It's important to diagnose and address the root cause of the issue.

7. How much does it cost to repair the Engine Coolant Temperature Sensor 1 Circuit Intermittent issue in a 2018 Ford F150?

The cost of repair can vary depending on the exact cause of the problem, the labor rates of the repair shop, and whether genuine Ford parts are used. It's advisable to get a diagnostic and repair quote from a trusted mechanic.

8. Can a DIY enthusiast fix the P0119 code issue in a 2018 Ford F150?

While some experienced DIY enthusiasts may be able to diagnose and replace the engine coolant temperature sensor themselves, it's crucial to have the proper tools, knowledge, and safety precautions in place. If in doubt, it's best to consult a professional mechanic.

9. How frequently does the Engine Coolant Temperature Sensor 1 Circuit Intermittent problem occur in a 2018 Ford F150?

The occurrence of this issue can vary from vehicle to vehicle, and factors like driving conditions, maintenance history, and the age of the vehicle can all play a role in triggering the code.

10. Will fixing the P0119 code improve the overall performance and efficiency of my 2018 Ford F150?

Yes, resolving the Engine Coolant Temperature Sensor 1 Circuit Intermittent issue can lead to better engine performance, improved fuel efficiency, and overall smoother operation of your Ford F150.