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P0187 Ford Code - Engine Fuel Temperature Sensor 'B' Circuit Low Input

Quick Answer

The P0187 Ford code indicates that the Engine Fuel Temperature Sensor 'B' Circuit is experiencing a low input. Common causes include Faulty fuel temperature sensor, Wiring or connector issues in the sensor circuit, Corrosion or damage to the 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
P0187 Ford indicates Engine Fuel Temperature Sensor 'B' Circuit Low Input.
Common causes
Common causes include Faulty fuel temperature sensor, Wiring or connector issues in the sensor circuit, Corrosion or damage to the 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.
What is this?
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0187 Ford Description

The P0187 Ford code indicates that the Engine Fuel Temperature Sensor 'B' Circuit is experiencing a low input. This sensor is responsible for monitoring the temperature of the fuel in the vehicle's fuel tank. When the sensor detects that the temperature is lower than the specified range, it triggers the P0187 code. This can lead to issues with fuel delivery and combustion, potentially affecting the vehicle's performance and fuel efficiency.

OBDII Code P0187 Ford - Engine Fuel Temperature Sensor 'B' Circuit Low Input
P0187 Ford Code - Engine Fuel Temperature Sensor 'B' Circuit Low Input

Common Causes of P0187 Ford

  1. Faulty fuel temperature sensor
  2. Wiring or connector issues in the sensor circuit
  3. Corrosion or damage to the sensor
  4. Issues with the fuel tank or fuel lines
  5. Electrical problems within the vehicle's system

Symptoms of P0187 Ford

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Engine misfires
  4. Illumination of the check engine light
  5. Difficulty starting the vehicle

How to Fix P0187 Ford

  1. Begin by diagnosing the root cause of the issue by performing a thorough inspection of the fuel temperature sensor and its circuit.
  2. Test the sensor's resistance and voltage to determine if it is functioning correctly.
  3. Check the wiring and connectors for any signs of damage or corrosion, repairing or replacing as necessary.
  4. If the sensor is faulty, replace it with a new one and recalibrate as needed.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0187 Ford

The cost estimate for repairing the P0187 Ford code can vary depending on the specific cause of the issue. On average, the cost of a new fuel temperature sensor ranges from $50 to $150, while labor costs can range from $100 to $200. Overall, the total repair cost may fall between $150 and $350. It's important to keep in mind that labor rates and part prices can vary based on location and the type of vehicle being serviced.

When is the Code Detected?

An excessively low voltage is sent to Powertrain Control Module (PCM) by the Engine Fuel Temperature (EFT) Sensor.

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Information for Specific Ford Models

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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