Engine-CodesFord – P0351 2001 Ford F150

P0351 2001 Ford F150 Code - Ignition Coil A Primary/Secondary Circuit Malfunction

Quick Answer

The diagnostic trouble code P0351 for a 2001 Ford F150 indicates an issue with the ignition coil A primary/secondary circuit. Common causes include Faulty ignition coil, Damaged spark plugs or wires, Wiring issues in the ignition coil 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
P0351 2001 Ford F150 indicates Ignition Coil A Primary/Secondary Circuit Malfunction .
Common causes
Common causes include Faulty ignition coil, Damaged spark plugs or wires, Wiring issues in the ignition coil 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.
Table of contents Created and updated by William Orellana on Sep 15, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0351 2001 Ford F150 Description

The diagnostic trouble code P0351 for a 2001 Ford F150 indicates an issue with the ignition coil A primary/secondary circuit. The ignition coil is a crucial component of the ignition system, responsible for converting the low voltage from the battery into the high voltage needed to ignite the fuel-air mixture in the engine cylinders. The primary circuit controls the power supply to the ignition coil, while the secondary circuit is responsible for delivering the high voltage spark to the spark plugs.

OBDII Code P0351 2001 Ford F150 - Ignition Coil A Primary/Secondary Circuit Malfunction
P0351 2001 Ford F150 Code - Ignition Coil A Primary/Secondary Circuit Malfunction

Common Causes of P0351 2001 Ford F150

  1. Faulty ignition coil
  2. Damaged spark plugs or wires
  3. Wiring issues in the ignition coil circuit
  4. ECM or PCM failure
  5. Poor electrical connection or corrosion in the ignition system components

Symptoms of P0351 2001 Ford F150

  1. Engine misfires
  2. Rough idling or vibrations
  3. Decreased fuel efficiency
  4. Engine stalling
  5. Lack of power or hesitation during acceleration

How to Fix P0351 2001 Ford F150

  1. Diagnose the specific cause of the issue using a scan tool to pinpoint the faulty component.
  2. Inspect the ignition coil, spark plugs, and wiring for any signs of damage or wear.
  3. Replace the faulty ignition coil A if necessary, ensuring proper installation and connection.
  4. Test the ignition system to verify that the issue has been resolved and clear the trouble code from the ECM.
  5. Perform a road test to confirm that the vehicle is running smoothly and that the symptoms associated with the P0351 code have been eliminated.

Cost to Fix P0351 2001 Ford F150

The typical repair costs for addressing the P0351 code on a 2001 Ford F150 can range from $150 to $300, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

Tech Notes for P0351 2001 Ford F150

Each ignition primary circuit is continuously monitored. The test fails when the PCM does not receive a valid IDM pulse signal from the ignition module (integrated in PCM).

When is the Code Detected?

Each ignition circuit is continuously monitored by the Engine Control Module (ECM). The test fails when the ECM does not receive a valid pulse signal from the ignition coil.

Need more information about the P0351 2001 Ford F150 code?

Need more information on how to fix the P0351 2001 Ford F150 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0351 2001 Ford F150 code diagnosed by a professional: Find a repair shop in your area

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 P0351 2001 Ford F150 Code

1. What does OBDII code P0351 mean for a 2001 Ford F150?

The code P0351 indicates a primary/secondary circuit malfunction in the ignition coil A of a 2001 Ford F150.

2. What are common symptoms of a P0351 code in a 2001 Ford F150?

Common symptoms include engine misfires, rough idle, loss of power, and illuminated check engine light.

3. What can cause the ignition coil A primary/secondary circuit malfunction in a 2001 Ford F150?

Potential causes include a faulty ignition coil, damaged wiring or connectors, a problem with the powertrain control module (PCM), or issues with the spark plugs or spark plug wires.

4. How can I diagnose a P0351 code in my 2001 Ford F150?

Diagnosis typically involves inspecting the ignition coil, checking the wiring and connectors for damage, testing the spark plugs and wires, and scanning the PCM for additional fault codes.

5. Can a bad spark plug cause a P0351 code in a 2001 Ford F150?

Yes, a worn or faulty spark plug can lead to irregular ignition coil operation and trigger a P0351 code in a 2001 Ford F150.

6. How can I repair a P0351 code in my 2001 Ford F150?

Repair may involve replacing the faulty ignition coil, repairing damaged wiring or connectors, addressing any issues with the spark plugs or wires, or reprogramming the PCM.

7. Is it safe to continue driving with a P0351 code in a 2001 Ford F150?

It is not recommended to drive with a P0351 code as it can lead to further engine damage and poor vehicle performance. It's best to address the issue promptly.

8. Can I reset the check engine light after fixing a P0351 code in a 2001 Ford F150?

Yes, once the underlying issue causing the P0351 code is resolved, the check engine light can be reset using an OBDII scanner or disconnecting the car's battery for a few minutes.

9. How much does it typically cost to repair a P0351 code in a 2001 Ford F150?

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

10. Will a P0351 code affect the fuel efficiency of a 2001 Ford F150?

Yes, a P0351 code can impact fuel efficiency due to engine misfires and improper combustion. Addressing the issue promptly can help restore optimal fuel economy.

Discuss the causes and fixes for P0351 2001 Ford F150 OBDII Code

Code P0351 2001 Ford F150 comments

No comments found for this page.