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Engine-Codes – Ford – C1477 Ford

C1477 Ford Code - High Pressure Hydraulic Circuit Leakage Plausibility Failure

Quick Answer

The C1477 Ford code indicates a High Pressure Hydraulic Circuit Leakage Plausibility Failure. Common causes include Damaged hydraulic lines or hoses, Worn-out seals or gaskets in the hydraulic system, Malfunctioning hydraulic pump. 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
C1477 Ford indicates High Pressure Hydraulic Circuit Leakage Plausibility Failure.
Common causes
Common causes include Damaged hydraulic lines or hoses, Worn-out seals or gaskets in the hydraulic system, Malfunctioning hydraulic pump.
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 C1477 Ford Description

The C1477 Ford code indicates a High Pressure Hydraulic Circuit Leakage Plausibility Failure. This means that there is a problem with the high-pressure hydraulic circuit in the vehicle, which can have serious implications for the vehicle's performance and safety. The high-pressure hydraulic circuit is responsible for controlling various systems in the vehicle, such as the power steering, suspension, and braking systems. When there is a leakage in this circuit, it can lead to a loss of hydraulic pressure, resulting in decreased performance and potentially dangerous driving conditions.

OBDII Code C1477 Ford - High Pressure Hydraulic Circuit Leakage Plausibility Failure
C1477 Ford Code - High Pressure Hydraulic Circuit Leakage Plausibility Failure

Common Causes of C1477 Ford

  1. Damaged hydraulic lines or hoses
  2. Worn-out seals or gaskets in the hydraulic system
  3. Malfunctioning hydraulic pump
  4. Contaminated or low hydraulic fluid levels
  5. Faulty hydraulic system components

Symptoms of C1477 Ford

  1. Difficulty steering or a stiff steering wheel
  2. Unusual noises coming from the power steering system
  3. Brake pedal feels spongy or requires more effort to engage
  4. Suspension feels bouncy or unstable
  5. Warning lights related to the hydraulic system on the dashboard

How to Fix C1477 Ford

  1. Perform a thorough inspection of the high-pressure hydraulic circuit to locate the source of the leakage.
  2. Replace any damaged hydraulic lines, hoses, seals, or gaskets.
  3. Check and refill hydraulic fluid levels to the manufacturer's specifications.
  4. Test the hydraulic system for proper pressure and functionality.
  5. Clear the diagnostic trouble code and reset the vehicle's computer system.

Cost to Fix C1477 Ford

The typical repair costs for addressing a High Pressure Hydraulic Circuit Leakage Plausibility Failure can range from $200 to $800, depending on the extent of the damage and the specific components that need to be replaced. This estimate includes parts and labor. However, it is essential to note that the actual cost can vary based on factors such as the vehicle make and model, the location of the repair shop, and the hourly labor rates. It is recommended to obtain quotes from multiple auto repair shops to compare prices and ensure a fair and accurate estimate.

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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 C1477 Ford Code

1. What are the common symptoms of OBDII code C1477 in a Ford vehicle?

The common symptoms of OBDII code C1477 include stiff steering, power steering failure, illuminated warning lights on the dashboard, and unusual noises when turning the steering wheel.

2. What can cause the OBDII code C1477 in a Ford vehicle?

The OBDII code C1477 in a Ford vehicle is often caused by a high-pressure hydraulic circuit leakage, which can result from damaged hoses, seals, or components in the power steering system.

3. How serious is the OBDII code C1477 in a Ford vehicle?

The OBDII code C1477 indicating a high-pressure hydraulic circuit leakage plausibility failure is a serious issue that can lead to a loss of power steering assistance, making it difficult to steer the vehicle safely.

4. How can I diagnose the high-pressure hydraulic circuit leakage causing OBDII code C1477 in my Ford vehicle?

Diagnosing the high-pressure hydraulic circuit leakage causing OBDII code C1477 may involve visually inspecting the power steering system for leaks, checking the fluid level, and performing a pressure test to pinpoint the source of the leak.

5. Can I continue driving my Ford vehicle with OBDII code C1477?

It is not recommended to drive your Ford vehicle with OBDII code C1477, as the high-pressure hydraulic circuit leakage can lead to a sudden loss of power steering assistance, posing a safety risk.

6. How can I repair OBDII code C1477 in my Ford vehicle?

To repair OBDII code C1477 related to a high-pressure hydraulic circuit leakage plausibility failure in a Ford vehicle, you may need to replace damaged hoses, seals, or components in the power steering system and ensure proper installation to resolve the issue.

7. Will resetting the OBDII code C1477 in my Ford vehicle make the problem go away?

Resetting the OBDII code C1477 may temporarily clear the warning light, but it will not fix the underlying issue of high-pressure hydraulic circuit leakage, which needs to be diagnosed and repaired to ensure safe driving.

8. Are there any preventive maintenance tips to avoid OBDII code C1477 in my Ford vehicle?

Regularly checking the power steering system for leaks, maintaining the proper fluid level, and addressing any unusual noises or steering difficulties promptly can help prevent high-pressure hydraulic circuit leakage and OBDII code C1477 in your Ford vehicle.

9. Can a DIY enthusiast fix OBDII code C1477 in a Ford vehicle?

While some DIY enthusiasts may have the skills to diagnose and repair OBDII code C1477 related to power steering issues, it is recommended to consult a professional mechanic or technician for proper diagnosis and repair to ensure safety and effectiveness.

10. How much does it typically cost to repair OBDII code C1477 in a Ford vehicle?

The cost to repair OBDII code C1477 in a Ford vehicle can vary depending on the extent of the damage, parts needed for replacement, labor rates, and location. It is advisable to get a few quotes from reputable repair shops to determine the estimated cost.

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