AutoCodes – Ford – P0119 Ford

P0119 Ford 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 Ford 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 31,110

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
Comments
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Code P0119 Ford 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 Ford - Engine Coolant Temperature Sensor 1 Circuit Intermittent - AutoCodes.com — P0119 Ford Code - Engine Coolant Temperature Sensor 1 Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P0119 Ford?

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 Ford?

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 Ford 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 Ford code?

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Information for Specific Ford Models

P0119 2015 Ford F150 — Engine Coolant Temperature Sensor 1 Circuit Intermittent
P0119 2016 Ford F150 — Engine Coolant Temperature Sensor 1 Circuit Intermittent
P0119 2017 Ford F150 — Engine Coolant Temperature Sensor 1 Circuit Intermittent
P0119 2018 Ford F150 — Engine Coolant Temperature Sensor 1 Circuit Intermittent
P0119 2019 Ford F150 — Engine Coolant Temperature Sensor 1 Circuit Intermittent
P0119 2020 Ford F150 — Engine Coolant Temperature Sensor 1 Circuit Intermittent
P0119 2006 Ford Fusion — Engine Coolant Temperature Sensor 1 Circuit Intermittent
P0119 2007 Ford Fusion — Engine Coolant Temperature Sensor 1 Circuit Intermittent
P0119 2008 Ford Fusion — Engine Coolant Temperature Sensor 1 Circuit Intermittent
P0119 2009 Ford Fusion — Engine Coolant Temperature Sensor 1 Circuit Intermittent
P0119 2010 Ford Fusion — Engine Coolant Temperature Sensor 1 Circuit Intermittent
P0119 2011 Ford Fusion — Engine Coolant Temperature Sensor 1 Circuit Intermittent
P0119 2012 Ford Fusion — Engine Coolant Temperature Sensor 1 Circuit Intermittent

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.