AutoCodes – Ford – P0187 2002 Ford F150

P0187 2002 Ford F150 Code - Engine Fuel Temperature Sensor B Circuit Low Input

Quick Answer

The fuel tank temperature sensor is used to detect the fuel temperature inside the fuel tank. Common causes include Faulty Fuel Temperature Sensor, Fuel Temperature Sensor harness is open or shorted, Fuel Temperature Sensor circuit poor electrical connection. 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 2002 Ford F150 indicates Engine Fuel Temperature Sensor B Circuit Low Input .
Common causes: Common causes include Faulty Fuel Temperature Sensor, Fuel Temperature Sensor harness is open or shorted, Fuel Temperature Sensor circuit poor electrical connection.
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 1,898

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0187 2002 Ford F150 Description

The fuel tank temperature sensor is used to detect the fuel temperature inside the fuel tank. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the fuel temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

OBDII Code P0187 2002 Ford F150 - Engine Fuel Temperature Sensor B Circuit Low Input - AutoCodes.com — P0187 2002 Ford F150 Code - Engine Fuel Temperature Sensor B Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0187 2002 Ford F150?

Faulty Fuel Temperature Sensor
Fuel Temperature Sensor harness is open or shorted
Fuel Temperature Sensor circuit poor electrical connection

How to Fix the DTC P0187 2002 Ford F150?

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

Replace Fuel Temperature Sensor.
The comprehensive component monitor (CCM) monitors the EFT sensor circuit to the PCM for low voltage. If voltage were to fall below a calibrated limit and amount of time during testing, the test will fail.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0187 2002 Ford F150 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 P0187 2002 Ford F150 code?

Need more information on how to fix the P0187 2002 Ford F150 code? Get Access to Factory Service Manuals

Need Help with the Code?

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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.

Frequently Asked Questions about P0187 2002 Ford F150 Code

1. What are common symptoms of OBDII code P0187 in a 2002 Ford F150?

- Common symptoms include poor fuel economy, rough idling, engine stalling, and difficulty starting the vehicle.

2. What does the OBDII code P0187 in a 2002 Ford F150 indicate?

- This code indicates a low input signal from the engine fuel temperature sensor B circuit.

3. What are the possible causes of OBDII code P0187 in a 2002 Ford F150?

- Possible causes include a faulty fuel temperature sensor, wiring issues, a poor electrical connection, or a problem with the engine control module.

4. How can I diagnose the issue causing OBDII code P0187 in my 2002 Ford F150?

- To diagnose the issue, you can use a scan tool to check for any additional trouble codes, inspect the wiring and connections related to the fuel temperature sensor, and test the sensor's resistance.

5. Can I continue driving my 2002 Ford F150 with OBDII code P0187?

- It is not recommended to continue driving with this code as it can lead to poor engine performance and potential further damage.

6. How can I repair OBDII code P0187 in my 2002 Ford F150?

- Repair options include replacing the fuel temperature sensor, repairing any damaged wiring, ensuring proper electrical connections, and clearing the trouble code with a scan tool.

7. Should I reset the OBDII code P0187 in my 2002 Ford F150 after making repairs?

- Yes, after making the necessary repairs, it is recommended to clear the trouble code with a scan tool to reset the system and see if the issue has been resolved.

8. How much does it typically cost to repair OBDII code P0187 in a 2002 Ford F150?

- The cost of repair can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.

9. Can a DIY enthusiast fix OBDII code P0187 in a 2002 Ford F150?

- Depending on your level of automotive knowledge and experience, you may be able to replace the fuel temperature sensor or inspect the wiring yourself. However, it is recommended to consult a professional if unsure.

10. Is OBDII code P0187 a serious issue in a 2002 Ford F150?

- While it may not cause immediate harm to the vehicle, ignoring this code can lead to decreased fuel efficiency and potential engine performance issues, so it is best to address it promptly.