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P0104 Ford Code - Mass Or Volume Air Flow Sensor 'A' Circuit Intermittent

Quick Answer

The P0104 Ford diagnostic trouble code indicates an issue with the Mass Air Flow (MAF) sensor circuit that is intermittent. Common causes include Dirty or contaminated MAF sensor, Faulty MAF sensor, Loose or damaged wiring/connectors in the MAF sensor circuit. 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
P0104 Ford indicates Mass Or Volume Air Flow Sensor 'A' Circuit Intermittent.
Common causes
Common causes include Dirty or contaminated MAF sensor, Faulty MAF sensor, Loose or damaged wiring/connectors in the MAF sensor circuit.
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 P0104 Ford Description

The P0104 Ford diagnostic trouble code indicates an issue with the Mass Air Flow (MAF) sensor circuit that is intermittent. The MAF sensor plays a crucial role in measuring the amount of air entering the engine, which is essential for proper fuel delivery and combustion. When this sensor malfunctions or its circuit has intermittent problems, it can lead to inaccurate readings that affect the engine's performance and efficiency. This can result in rough idling, poor acceleration, decreased fuel economy, and potential engine stalling.

OBDII Code P0104 Ford - Mass Or Volume Air Flow Sensor 'A' Circuit Intermittent
P0104 Ford Code - Mass Or Volume Air Flow Sensor 'A' Circuit Intermittent

Common Causes of P0104 Ford

  1. Dirty or contaminated MAF sensor
  2. Faulty MAF sensor
  3. Loose or damaged wiring/connectors in the MAF sensor circuit
  4. Intermittent electrical connection issues
  5. Air intake system leaks

Symptoms of P0104 Ford

  1. Rough idling or stalling
  2. Poor acceleration or hesitation
  3. Decreased fuel efficiency
  4. Check Engine Light illuminated
  5. Engine misfires

How to Fix P0104 Ford

  1. Inspect and clean the MAF sensor: Start by locating the MAF sensor, typically found between the air filter box and the throttle body. Remove the sensor and carefully clean it using MAF sensor cleaner.
  2. Check wiring and connectors: Inspect the wiring and connectors in the MAF sensor circuit for any damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test MAF sensor: Use a multimeter to test the MAF sensor's voltage output and resistance to ensure it is functioning within the manufacturer's specifications.
  4. Clear trouble codes: After performing the repair, clear the trouble codes using an OBD-II scanner to reset the Check Engine Light and monitor the vehicle's performance for any recurring issues.
  5. Verify repairs: Take the vehicle for a test drive to ensure that the symptoms associated with the P0104 code have been resolved.

Cost to Fix P0104 Ford

The typical repair costs for addressing a P0104 Ford code can vary depending on the specific cause of the issue. On average, the cost of parts for a MAF sensor replacement ranges from $100 to $400, with labor costs adding an additional $80 to $150 per hour. Total repair costs could range from $150 to $600 or more, depending on the extent of the repairs needed. It's recommended to consult with a trusted mechanic or repair shop to obtain an accurate estimate based on your vehicle's make and model, as well as the local labor rates.

What does this mean?

Tech Notes for P0104 Ford

Before replacing the Mass Air Flow (MAF) Sensor, try replacing the air filter and cleaning the Mass Air Flow Sensor with low-compressed air or a Mass Air Flow Sensor Cleaner. Reset the code and drive the vehicle. If the code comes back, you must replace the Mass Air Flow Sensor to fix the problem.

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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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