Engine-CodesBuick – P1119 Buick

P1119 Buick Code - Engine Coolant Temperature Signal Out Of Rage

Quick Answer

The P1119 Buick trouble code indicates that the engine coolant temperature signal is out of range. Common causes include Faulty coolant temperature sensor, Wiring or connector issues in the coolant temperature sensor circuit, Low coolant level or coolant leaks. 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
P1119 Buick indicates Engine Coolant Temperature Signal Out Of Rage.
Common causes
Common causes include Faulty coolant temperature sensor, Wiring or connector issues in the coolant temperature sensor circuit, Low coolant level or coolant leaks.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1119 Buick Description

The P1119 Buick trouble code indicates that the engine coolant temperature signal is out of range. This means that the Engine Control Module (ECM) is receiving a signal from the coolant temperature sensor that is either too high or too low compared to the expected range. The coolant temperature sensor is responsible for monitoring the temperature of the engine coolant and sending this information to the ECM. This data is crucial for the ECM to adjust fuel delivery, ignition timing, and other engine parameters to ensure optimal performance and efficiency.

OBDII Code P1119 Buick - Engine Coolant Temperature Signal Out Of Rage
P1119 Buick Code - Engine Coolant Temperature Signal Out Of Rage

Common Causes of P1119 Buick

  1. Faulty coolant temperature sensor
  2. Wiring or connector issues in the coolant temperature sensor circuit
  3. Low coolant level or coolant leaks
  4. Thermostat stuck open or closed
  5. ECM malfunction

Symptoms of P1119 Buick

  1. Engine running hot or overheating
  2. Poor fuel efficiency
  3. Rough idling or stalling
  4. Check Engine Light illuminated
  5. Engine performance issues

How to Fix P1119 Buick

  1. Start by diagnosing the issue using a scan tool to retrieve the trouble code and check the coolant temperature sensor's readings.
  2. Inspect the coolant temperature sensor, wiring, and connectors for any visible damage or corrosion. Replace or repair as needed.
  3. Check the coolant level and look for any leaks. Repair any leaks and top up the coolant if necessary.
  4. Test the thermostat for proper operation. Replace if it is stuck open or closed.
  5. Clear the trouble code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1119 Buick

The cost of repairing the P1119 Buick trouble code can vary depending on the specific cause of the issue. In general, replacing a coolant temperature sensor can cost between $50 and $150, while fixing wiring or connector issues may range from $100 to $200. Thermostat replacement can add another $100 to $200 to the total cost. Labor costs can vary between $80 and $150 per hour, and the total repair bill may range from $200 to $500 or more. It is advisable to consult with a qualified mechanic to get an accurate estimate based on the specific vehicle and location.

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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.

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