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P142B Ford Code - Exhaust Gas Recirculation Sensor 'D' Circuit

Quick Answer

The P142B diagnostic trouble code for Ford vehicles specifically relates to the Exhaust Gas Recirculation (EGR) sensor 'D' circuit. Common causes include Faulty EGR sensor 'D', Damaged wiring or connectors in the sensor circuit, ECM malfunction. 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
P142B Ford indicates Exhaust Gas Recirculation Sensor 'D' Circuit.
Common causes
Common causes include Faulty EGR sensor 'D', Damaged wiring or connectors in the sensor circuit, ECM malfunction.
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 Sep 10, 2024
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Code P142B Ford Description

The P142B diagnostic trouble code for Ford vehicles specifically relates to the Exhaust Gas Recirculation (EGR) sensor 'D' circuit. The EGR system is designed to reduce nitrogen oxide emissions by recirculating a portion of the engine's exhaust gases back into the intake manifold, where they are mixed with fresh air and fuel. This process lowers combustion temperatures, reducing the formation of harmful emissions.

OBDII Code P142B Ford - Exhaust Gas Recirculation Sensor 'D' Circuit
P142B Ford Code - Exhaust Gas Recirculation Sensor 'D' Circuit

Common Causes of P142B Ford

  1. Faulty EGR sensor 'D'
  2. Damaged wiring or connectors in the sensor circuit
  3. ECM malfunction
  4. Carbon buildup in the EGR system
  5. Vacuum leaks in the EGR system

Symptoms of P142B Ford

  1. Check engine light illuminated on the dashboard
  2. Decreased fuel efficiency
  3. Rough idling or engine misfires
  4. Poor acceleration or lack of power
  5. Engine stalling or hesitation

How to Fix P142B Ford

  1. Use an OBD-II scanner to retrieve the trouble code and perform a comprehensive diagnosis of the EGR system.
  2. Inspect the EGR sensor 'D', wiring, and connectors for any signs of damage or corrosion.
  3. Test the EGR sensor 'D' using a multimeter to verify its functionality.
  4. Clean the EGR valve and passages to remove any carbon buildup that may be affecting EGR operation.
  5. Replace the EGR sensor 'D' if it is found to be faulty, and clear the trouble code from the ECM memory.

Cost to Fix P142B Ford

The typical repair costs for addressing the P142B code for Ford vehicles can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that these estimates can vary based on factors such as location, vehicle make and model, and the rates of individual auto repair shops. The diagnosis time and labor rates at auto repair shops can range from $80 to $150 per hour, with rates potentially higher at dealerships or in metropolitan areas and lower at independent shops. To obtain a more accurate estimate, it is recommended to contact local auto repair shops for specific pricing information.

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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 P142B Ford Code

1. What are the common symptoms of OBDII code P142B Ford related to the Exhaust Gas Recirculation Sensor 'D' Circuit?

- Common symptoms include poor engine performance, rough idling, decreased fuel efficiency, and the illumination of the Check Engine Light.

2. What are some possible causes of OBDII code P142B Ford for the Exhaust Gas Recirculation Sensor 'D' Circuit?

- Possible causes may include a faulty EGR sensor 'D', wiring issues, a vacuum leak in the EGR system, or a malfunctioning EGR valve.

3. How can I diagnose OBDII code P142B Ford for the Exhaust Gas Recirculation Sensor 'D' Circuit?

- Diagnosis typically involves using an OBDII scanner to retrieve the trouble code, inspecting the EGR system for leaks or damage, testing the EGR sensor, and checking the wiring for any issues.

4. What are some repair tips for addressing OBDII code P142B Ford related to the Exhaust Gas Recirculation Sensor 'D' Circuit?

- Repair tips may include replacing the faulty EGR sensor 'D', repairing any damaged wiring, fixing vacuum leaks in the EGR system, or cleaning/replacing the EGR valve if necessary.

5. Is it safe to continue driving with OBDII code P142B Ford indicating an issue with the Exhaust Gas Recirculation Sensor 'D' Circuit?

- It is generally not recommended to continue driving with this code present, as it can lead to further engine damage and potentially worsen fuel efficiency. It's best to address the issue promptly.

6. Can I reset the Check Engine Light after fixing OBDII code P142B Ford for the Exhaust Gas Recirculation Sensor 'D' Circuit?

- Yes, once the underlying issue is resolved, you can reset the Check Engine Light using an OBDII scanner to clear the trouble code.

7. How much does it typically cost to repair OBDII code P142B Ford for the Exhaust Gas Recirculation Sensor 'D' Circuit?

- The cost of repair can vary depending on the specific cause of the issue, but it may range from $100 to $500, including parts and labor.

8. Are there any preventive maintenance measures to avoid OBDII code P142B Ford related to the Exhaust Gas Recirculation Sensor 'D' Circuit?

- Regularly inspecting and cleaning the EGR system, checking for vacuum leaks, and ensuring proper maintenance of the engine can help prevent issues leading to this trouble code.

9. Will OBDII code P142B Ford cause my vehicle to fail an emissions test?

- Yes, this code indicates a problem with the EGR system, which is crucial for emissions control. It may cause your vehicle to fail an emissions test until the issue is resolved.

10. How long does it typically take to repair OBDII code P142B Ford for the Exhaust Gas Recirculation Sensor 'D' Circuit?

- The repair time can vary based on the specific issue and the expertise of the technician, but it may take anywhere from 1 to 3 hours to address this problem.

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