AutoCodes – Ford – P0455 2009 Ford Fusion

P0455 2009 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 2009 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 7,206

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 2009 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 2009 Ford Fusion - Evaporative Emission Control System Leak Detected Gross Leak - AutoCodes.com — P0455 2009 Ford Fusion Code - Evaporative Emission Control System Leak Detected Gross Leak

What does this mean?

What are the Possible Causes of the DTC P0455 2009 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 2009 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 2009 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 2009 Ford Fusion code?

Need more information on how to fix the P0455 2009 Ford Fusion code? Get Access to Factory Service Manuals

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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 2009 Ford Fusion Code

1. What does the OBDII code P0455 on a 2009 Ford Fusion mean?

- The code P0455 indicates that the Evaporative Emission Control System has detected a gross leak.

2. What are the common symptoms of a P0455 code on a 2009 Ford Fusion?

- Common symptoms include the check engine light illuminating, a strong fuel odor, and potential difficulties during refueling.

3. What are the possible causes of a P0455 code on a 2009 Ford Fusion?

- The main causes could be a loose or damaged gas cap, a leak in the fuel tank, a cracked or disconnected hose in the evaporative emission system, or a faulty purge valve.

4. How serious is a P0455 code on a 2009 Ford Fusion?

- While the code itself may not affect the immediate driving of the vehicle, it can lead to increased emissions and decreased fuel efficiency if left unresolved.

5. Can I continue driving my 2009 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 and ensure optimal performance.

6. How can I diagnose and repair a P0455 code on my 2009 Ford Fusion?

- Start by checking the gas cap for tightness and any visible damage. Inspect the EVAP system components for leaks, cracks, or loose connections. Consider using a smoke test to pinpoint the source of the leak.

7. Is it possible to reset the P0455 code on a 2009 Ford Fusion without fixing the issue?

- While you can clear the code using an OBDII scanner, the check engine light will likely reappear if the underlying problem is not addressed.

8. How much does it typically cost to repair a P0455 code on a 2009 Ford Fusion?

- The cost of repairs can vary depending on the exact cause of the code and the labor rates in your area. Simple fixes like replacing a gas cap may be inexpensive, while repairing a leak in the fuel system could be more costly.

9. Can a P0455 code on a 2009 Ford Fusion affect emissions testing?

- Yes, a P0455 code can cause your vehicle to fail emissions testing due to increased emissions resulting from the evaporative system leak.

10. Are there any preventative measures to avoid a P0455 code on a 2009 Ford Fusion?

- Regularly inspect the gas cap for tightness and damage, follow proper refueling procedures, and address any warning lights or unusual odors promptly to help prevent a P0455 code.