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Engine-Codes – Ford – P0355 2001 Ford F150

P0355 2001 Ford F150 Code - Ignition Coil 'E' Primary/Secondary Circuit

Quick Answer

The P0355 diagnostic trouble code (DTC) for a 2001 Ford F150 specifically refers to the ignition coil 'E' primary/secondary circuit. Common causes include Faulty ignition coil 'E', Wiring issues in the ignition coil circuit, Corrosion or loose connections in the electrical system. 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
P0355 2001 Ford F150 indicates Ignition Coil 'E' Primary/Secondary Circuit .
Common causes
Common causes include Faulty ignition coil 'E', Wiring issues in the ignition coil circuit, Corrosion or loose connections in the electrical system.
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 13, 2024
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Code P0355 2001 Ford F150 Description

The P0355 diagnostic trouble code (DTC) for a 2001 Ford F150 specifically refers to the ignition coil 'E' primary/secondary circuit. This code indicates a problem with the electrical circuit that controls the ignition coil for cylinder 'E'. 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 create a spark in the spark plugs, which ignites the air-fuel mixture in the engine cylinders.

OBDII Code P0355 2001 Ford F150 - Ignition Coil 'E' Primary/Secondary Circuit
P0355 2001 Ford F150 Code - Ignition Coil 'E' Primary/Secondary Circuit

Common Causes of P0355 2001 Ford F150

  1. Faulty ignition coil 'E'
  2. Wiring issues in the ignition coil circuit
  3. Corrosion or loose connections in the electrical system
  4. Defective spark plugs
  5. Engine overheating

Symptoms of P0355 2001 Ford F150

  1. Engine misfires
  2. Rough idling
  3. Decreased fuel efficiency
  4. Engine hesitation
  5. Illumination of the check engine light

How to Fix P0355 2001 Ford F150

  1. Diagnose the specific cause of the issue using a scan tool to confirm the P0355 code and perform a visual inspection of the ignition coil 'E' and its wiring.
  2. Test the ignition coil 'E' using a multimeter to check for proper resistance and continuity.
  3. Inspect the wiring harness for any signs of damage, corrosion, or loose connections. Repair or replace any faulty wiring.
  4. Replace the ignition coil 'E' if it is found to be defective.
  5. Clear the DTC with a scan tool and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0355 2001 Ford F150

The typical repair costs for addressing the P0355 code on a 2001 Ford F150 can range from $150 to $300, including parts and labor. However, it's important to note that 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. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's advisable to check local rates for a more precise estimate.

What does this mean?

Tech Notes for P0355 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.

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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 P0355 2001 Ford F150 Code

1. What are the common symptoms of OBDII code P0355 in a 2001 Ford F150?

- Common symptoms include engine misfires, rough idling, loss of power, and in some cases, the vehicle may not start at all.

2. What are the possible causes of OBDII code P0355 in a 2001 Ford F150?

- The primary causes of this code include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or a problem with the Engine Control Module (ECM).

3. How can I diagnose the issue causing OBDII code P0355 in my 2001 Ford F150?

- You can use a multimeter to test the resistance of the ignition coil, inspect the wiring and connectors for any damage, and perform a scan tool test to check for ECM communication issues.

4. Can I still drive my 2001 Ford F150 with OBDII code P0355 present?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the ignition system and potentially cause more severe issues.

5. How can I repair OBDII code P0355 in my 2001 Ford F150?

- The most common repair for this code is to replace the faulty ignition coil. Additionally, repairing any damaged wiring or connectors in the ignition coil circuit may also be necessary.

6. Are there any preventive measures I can take to avoid OBDII code P0355 in my 2001 Ford F150?

- Regularly inspecting and maintaining the ignition system of your vehicle can help prevent issues that may lead to this code, such as replacing spark plugs and ignition coils at recommended intervals.

7. Can a DIY enthusiast repair OBDII code P0355 in a 2001 Ford F150?

- Yes, if you have the necessary tools and knowledge, you can attempt to repair this code yourself by following a repair manual specific to your vehicle model.

8. Will resetting the trouble codes make OBDII code P0355 go away temporarily in my 2001 Ford F150?

- Resetting the trouble codes may temporarily clear the code, but if the underlying issue causing P0355 is not addressed, the code is likely to reappear once the vehicle is driven again.

9. How much does it typically cost to repair OBDII code P0355 in a 2001 Ford F150 at a professional mechanic?

- The cost of repairing this code can vary depending on the exact cause of the issue, but it generally ranges from $150 to $300 for parts and labor.

10. Can OBDII code P0355 in a 2001 Ford F150 cause damage to other engine components if not repaired promptly?

- Yes, if left unresolved, this code can lead to further damage to the ignition system and potentially cause damage to other engine components, resulting in more costly repairs.

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