P0119 Chevrolet Code - Engine Coolant Temperature Circuit Intermittent
Quick Answer
The Engine Coolant Temperature (ECT) sensor is a variable resistor that measures the temperature of the engine coolant. Common causes include Low engine coolant level, Leaking or stuck open thermostat, Faulty Engine Coolant Temperature (ECT) sensor. 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 Chevrolet indicates Engine Coolant Temperature Circuit Intermittent.
- Common causes
- Common causes include Low engine coolant level, Leaking or stuck open thermostat, Faulty Engine Coolant Temperature (ECT) sensor.
- 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.
Code P0119 Chevrolet Description
The ECM uses this high side coolant rationality diagnostic to determine if the input from the ECT sensor is skewed warmer than normal. The internal clock of the ECM will record the amount of time the ignition is OFF. If the calibrated ignition OFF time is met at start-up, the ECM will compare the temperature difference between the ECT and the intake air temperature (IAT) to determine if the temperatures are within an acceptable operating range of each other. The Diagnostic Trouble Code (DTC) will be set when the ECM detects a the ECT is Intermittent for greater than 3 s.
What are the Possible Causes of the DTC P0119 Chevrolet?
- Low engine coolant level
- Leaking or stuck open thermostat
- Faulty Engine Coolant Temperature (ECT) sensor
- Engine Coolant Temperature sensor harness is open or shorted
- Engine Coolant Temperature sensor electrical circuit poor connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0119 Chevrolet?
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 is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0119 Chevrolet 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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Information for Specific Chevrolet Models
- P0119 2014 Chevrolet Silverado — Engine Coolant Temperature Circuit Intermittent
- P0119 2015 Chevrolet Silverado — Engine Coolant Temperature Circuit Intermittent
- P0119 2016 Chevrolet Silverado — Engine Coolant Temperature Circuit Intermittent
- P0119 2017 Chevrolet Silverado — Engine Coolant Temperature Circuit Intermittent
- P0119 2018 Chevrolet Silverado — Engine Coolant Temperature Circuit Intermittent
Frequently Asked Questions about P0119 Chevrolet Code
1. What are the common symptoms of OBDII code P0119 in a Chevrolet?
- Common symptoms include erratic engine temperature readings on the dashboard, engine overheating, poor fuel efficiency, and potential stalling or rough idling.
2. What could cause the OBDII code P0119 in a Chevrolet to trigger?
- The code P0119 is usually triggered by a faulty engine coolant temperature (ECT) sensor, issues with the ECT sensor wiring or connectors, or a malfunctioning cooling system.
3. How can I diagnose the OBDII code P0119 in my Chevrolet?
- To diagnose the code P0119, you can use a diagnostic scan tool to check for the specific trouble code, inspect the ECT sensor and its wiring for any visible damage, and test the sensor's resistance with a multimeter.
4. Can I drive my Chevrolet with the OBDII code P0119 present?
- It is not recommended to drive your Chevrolet with the code P0119 present, as it can lead to engine overheating and potential damage. It is best to address the issue promptly.
5. What are some DIY repair tips for fixing OBDII code P0119 in a Chevrolet?
- DIY repair tips include checking and replacing the ECT sensor if faulty, inspecting and repairing any damaged wiring or connectors, and ensuring the cooling system is functioning properly.
6. How much does it typically cost to repair OBDII code P0119 in a Chevrolet?
- The cost of repairing OBDII code P0119 in a Chevrolet can vary depending on the exact cause of the issue and whether you choose to do the repairs yourself or take it to a mechanic. Costs can range from around $50 to $200 or more.
7. Is it safe to reset the OBDII code P0119 without fixing the underlying issue?
- It is not recommended to simply reset the code without addressing the underlying issue, as this can lead to ongoing problems with engine performance and potentially cause further damage.
8. Can a faulty thermostat cause the OBDII code P0119 in a Chevrolet?
- Yes, a faulty thermostat can sometimes cause the code P0119 to trigger, as it can affect the proper functioning of the engine coolant temperature sensor and lead to inaccurate readings.
9. Will the check engine light turn off on its own after fixing the OBDII code P0119 in a Chevrolet?
- In most cases, once the underlying issue causing the code P0119 is fixed, the check engine light should turn off on its own after a few driving cycles where the problem does not reoccur.
10. How important is it to address the OBDII code P0119 promptly in a Chevrolet?
- It is important to address the code P0119 promptly to avoid potential engine damage, overheating, and related performance issues. Ignoring the code can lead to more costly repairs down the line.
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