AutoCodes – Ford – P0455 2011 Ford Fusion

P0455 2011 Ford Fusion Code - Evaporative Emission Control System Leak Detected Gross Leak

Quick Answer

The Powertrain Control Module (PCM) monitors the complete evaporative emission (EVAP) control system for no purge flow, the presence of a large fuel vapor leak, or multiple small fuel vapor leaks. Common causes include Missing or loose fuel 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: P0455 2011 Ford Fusion indicates Evaporative Emission Control System Leak Detected Gross Leak.
Common causes: Common causes include Missing or loose fuel 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 18,759

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 Mar 25, 2024

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0455 2011 Ford Fusion Description

The Powertrain Control Module (PCM) monitors the complete evaporative emission (EVAP) control system for no purge flow, the presence of a large fuel vapor leak, or multiple small fuel vapor leaks. System failure occurs when no purge flow, which is attributed to fuel vapor blockages or restrictions, a large fuel vapor leak, or multiple fuel vapor leaks are detected by the EVAP running loss monitor test with the engine running, but not at idle.

OBDII Code P0455 2011 Ford Fusion - Evaporative Emission Control System Leak Detected Gross Leak - AutoCodes.com — P0455 2011 Ford Fusion Code - Evaporative Emission Control System Leak Detected Gross Leak

What does this mean?

What are the Possible Causes of the DTC P0455 2011 Ford Fusion?

Missing or loose fuel cap
Incorrect fuel filler cap used
Fuel filler cap remains open or fails to close
Foreign matter caught in fuel filler cap
EVAP canister or fuel tank leaks
EVAP system hose leaking
Fuel tank leaking

How to Fix the DTC P0455 2011 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 does this mean?

Code Tech Notes

The P0455 it's a very common code, because the code is set if the gas cap is loose or missing. Start by tighten the gas cap and clearing the code. In most cases the code can be clear by disconnecting the car battery for about 30 minutes.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0455 2011 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 P0455 2011 Ford Fusion code?

Need more information on how to fix the P0455 2011 Ford Fusion code? Get Access to Factory Service Manuals

Need Help with the 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 P0455 2011 Ford Fusion Code

1. What does OBDII code P0455 on a 2011 Ford Fusion mean?

The code P0455 in a 2011 Ford Fusion indicates that the Evaporative Emission Control System has detected a gross leak.

2. What are common symptoms of a P0455 code in a 2011 Ford Fusion?

Common symptoms of a P0455 code may include the check engine light coming on, a noticeable fuel smell near the vehicle, and potential issues with passing emissions tests.

3. What are the possible causes of a P0455 code in a 2011 Ford Fusion?

Potential causes of a P0455 code include a loose or damaged gas cap, a leaking fuel tank filler neck, cracked or damaged EVAP system hoses, or a malfunctioning EVAP purge valve.

4. How serious is a P0455 code on a 2011 Ford Fusion?

While a P0455 code is not an emergency, it should not be ignored. It can impact the vehicle's emissions system, fuel economy, and overall performance.

5. How can I diagnose a P0455 code in my 2011 Ford Fusion?

Diagnosing a P0455 code may involve visually inspecting the fuel cap, checking for visible leaks in the EVAP system, using a smoke machine to detect leaks, and performing tests on the EVAP system components.

6. Can I continue to drive my 2011 Ford Fusion with a P0455 code?

It is generally safe to drive the vehicle with a P0455 code, but it is recommended to address the issue promptly to prevent potential damage to the emissions system and ensure optimal performance.

7. How can I repair a P0455 code in my 2011 Ford Fusion?

Repairing a P0455 code may involve tightening or replacing the gas cap, repairing or replacing damaged EVAP system components, clearing the code with an OBDII scanner, and conducting a drive cycle to ensure the issue is resolved.

8. Will a P0455 code reset itself in a 2011 Ford Fusion?

If the underlying issue causing the P0455 code is not fixed, the code may continue to reappear even after clearing it. It is important to diagnose and repair the problem to prevent recurring codes.

9. How much does it typically cost to fix a P0455 code in a 2011 Ford Fusion?

The cost of fixing a P0455 code can vary depending on the specific issue causing the code and whether repairs can be done at home or by a professional. Costs may range from a simple gas cap replacement to more extensive EVAP system repairs.

10. Can I prevent a P0455 code from appearing in my 2011 Ford Fusion?

Regularly checking and tightening the gas cap, performing routine maintenance on the EVAP system, and addressing any fuel system issues promptly can help prevent the recurrence of a P0455 code in your 2011 Ford Fusion.