P0119 Buick 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 Buick 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 Buick 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 Buick?
- 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 Buick?
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 Buick 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 Buick code?
Need more information on how to fix the P0119 Buick code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0119 Buick code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0119 Buick Code
1. What are the common symptoms of OBDII code P0119 in a Buick related to the Engine Coolant Temperature Circuit Intermittent?
- Common symptoms include fluctuating or inaccurate temperature readings on the dashboard, engine overheating, poor fuel economy, and potential issues with the vehicle's performance.
2. What are the typical causes of OBDII code P0119 in a Buick?
- The code P0119 in a Buick is often triggered by a faulty engine coolant temperature sensor, damaged wiring or connectors in the coolant temperature circuit, or a malfunctioning engine control module (ECM).
3. How can I diagnose the Engine Coolant Temperature Circuit Intermittent issue in my Buick?
- To diagnose the problem, you can use a diagnostic scanner to read the OBDII code P0119. Additionally, you can test the engine coolant temperature sensor, inspect the wiring and connectors for any damage, and check the ECM for proper functioning.
4. Is it safe to continue driving my Buick with OBDII code P0119 present?
- It is not recommended to drive your Buick with code P0119 present, as it can lead to engine overheating and potential damage. It's best to address the issue promptly to avoid further problems.
5. Can I fix the Engine Coolant Temperature Circuit Intermittent issue in my Buick myself?
- Depending on your level of automotive knowledge, you may be able to address the issue yourself by replacing the engine coolant temperature sensor, repairing any damaged wiring or connectors, or resetting the ECM. However, if you are unsure, it's best to seek professional help.
6. Will resetting the OBDII code P0119 in my Buick make the issue go away permanently?
- Resetting the code may temporarily turn off the check engine light, but if the underlying issue causing the code is not addressed, it is likely to reappear. It's important to diagnose and fix the root cause of the problem.
7. Are there any specific repair tips for resolving the OBDII code P0119 in a Buick?
- When repairing the Engine Coolant Temperature Circuit Intermittent issue, make sure to use a high-quality replacement coolant temperature sensor, check for proper wiring connections, and consider consulting a service manual for your specific Buick model.
8. How much does it typically cost to fix OBDII code P0119 in a Buick?
- The cost of fixing the Engine Coolant Temperature Circuit Intermittent issue can vary depending on the root cause of the problem, the cost of parts, and labor fees. It's advisable to get a few quotes from reputable mechanics or repair shops.
9. Can a faulty thermostat cause OBDII code P0119 to appear in a Buick?
- While a faulty thermostat can impact the engine coolant temperature, it is not a direct cause of OBDII code P0119. The code is primarily related to issues with the engine coolant temperature sensor or its circuit.
10. How long does it typically take to repair OBDII code P0119 in a Buick?
- The repair time for resolving the Engine Coolant Temperature Circuit Intermittent issue can vary depending on the specific cause and complexity of the problem. In general, it may take anywhere from 1 to 3 hours for a skilled mechanic to diagnose and fix the issue.
Discuss the causes and fixes for P0119 Buick OBDII Code
Code P0119 Buick comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
