AutoCodes – Ford – P0457 2007 Ford Fusion

P0457 2007 Ford Fusion Code - EVAP Control System Leak Detected Fuel Filler Cap Loose/Off

Quick Answer

The Powertrain Control Module (PCM) continuously monitors the fuel level and retains the last updated value prior to the ignition switch being placed in the OFF position. Common causes include Missing fuel filler cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: P0457 2007 Ford Fusion indicates EVAP Control System Leak Detected Fuel Filler Cap Loose/Off.
Common causes: Common causes include Missing fuel filler cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 2,858

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0457 2007 Ford Fusion Description

The Powertrain Control Module (PCM) continuously monitors the fuel level and retains the last updated value prior to the ignition switch being placed in the OFF position. After the ignition switch is placed in the ON position a new fuel level is taken and compared to the level recorded at ignition off. If the fuel level has increased, a flag is set in the PCM indicating the vehicle was refueled. If the evaporative emission (EVAP) monitor detects a gross leak while the refueling flag is set, a loose fuel filler cap or an incorrectly sealed fuel tank filler pipe (if equipped) is suspected and the DTC is set. On most vehicles when the DTC sets, either the check fuel cap indicator illuminates or a message on the instrument cluster displays to instruct the driver to check the fuel cap or capless fuel tank filler pipe (if equipped).

OBDII Code P0457 2007 Ford Fusion - EVAP Control System Leak Detected Fuel Filler Cap Loose/Off - AutoCodes.com — P0457 2007 Ford Fusion Code - EVAP Control System Leak Detected Fuel Filler Cap Loose/Off

What does this mean?

What are the Possible Causes of the DTC P0457 2007 Ford Fusion?

Missing fuel filler cap
Incorrect fuel filler cap used
Fuel filler cap remains open or fails to close
Foreign matter caught in fuel filler cap

How to Fix the DTC P0457 2007 Ford Fusion?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0457 2007 Ford Fusion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0457 2007 Ford Fusion code?

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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 P0457 2007 Ford Fusion Code

1. What does the OBDII code P0457 mean on a 2007 Ford Fusion?

P0457 indicates that the EVAP (Evaporative Emission Control) system has detected a fuel vapor leak, which is often caused by a loose or missing fuel filler cap.

2. What are the common symptoms of code P0457 in a 2007 Ford Fusion?

Symptoms may include the check engine light turning on, a slight fuel odor near the vehicle, and potentially a decrease in fuel efficiency.

3. What is the most common cause of the P0457 code on a 2007 Ford Fusion?

The most common cause is a loose, damaged, or missing fuel filler cap.

4. Can a faulty fuel cap cause P0457 in a 2007 Ford Fusion?

Yes, a faulty fuel cap that cannot seal properly can cause the P0457 code to trigger.

5. How do I fix the P0457 code on my 2007 Ford Fusion?

Start by ensuring the fuel cap is tightened properly. If the code persists, inspect the fuel cap for damage or replace it. If the problem remains, further inspection of the EVAP system for leaks is needed.

6. Can I drive my 2007 Ford Fusion with the P0457 code?

Yes, you can drive the car, but it is recommended to address the issue promptly to prevent increased emissions and possible fuel vapor leaks.

7. How can I check if my fuel cap is the issue for the P0457 code?

Inspect the fuel cap for cracks, damage, or a worn-out seal. Ensure it clicks securely when tightened.

8. What should I do if replacing the fuel cap doesnâ€™t clear the P0457 code?

If replacing the fuel cap doesnâ€™t resolve the issue, check for leaks in the EVAP system, such as damaged hoses or a faulty purge valve.

9. Will clearing the P0457 code solve the problem permanently?

Clearing the code will turn off the check engine light temporarily, but if the issue isnâ€™t fixed, the code will return.

10. How much does it cost to fix the P0457 code on a 2007 Ford Fusion?

Fixing the issue can range from $10 to $50 for a new fuel cap. If further EVAP system repairs are needed, costs can increase depending on the extent of the repairs.