Code P0455Fix Soon
EVAP Emission Control System Large Leak Detected
Your gas tank vapor system has a big leak - like leaving your gas cap off. You might smell gas and fail emissions.
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Schedule Service Soon
This issue should be addressed within 1-2 weeks to prevent potential damage or increased repair costs.
Recommended Actions:
- •Schedule diagnosis within the next week
- •Monitor for worsening symptoms
- •Avoid aggressive driving
- •Keep track of any new symptoms
What This Code Means
A large leak has been detected in the evaporative emission control system.
"Your gas tank vapor system has a big leak - like leaving your gas cap off. You might smell gas and fail emissions."
Common Causes
Missing or very loose gas cap
Broken EVAP hoses
Failed purge or vent valve
Cracked fuel tank
Disconnected vapor lines
Symptoms You May Notice
Professional Diagnostic Steps
Our technicians will perform these checks:
Commonly Affects These Vehicles
Note: This code can appear in any vehicle. These are just the most common.
Repair Cost Breakdown
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- ASE Certified Technicians
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- Warranty on All Repairs
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Frequently Asked Questions About Code P0455
Can I keep driving with code P0455?
Check gas cap immediately - if tight, diagnose soon to prevent fuel loss
How much will it cost to fix P0455?
The repair approach depends on the specific cause and your vehicle.The most common cause (missing or very loose gas cap) usually costs on the lower end of this range.
Will code P0455 clear itself?
While the check engine light may turn off if the condition improves temporarily, the code will remain stored in your vehicle's computer. The underlying issue still needs to be addressed to prevent the code from returning and potentially causing damage.
Is P0455 covered under warranty?
Many emissions-related repairs are covered under federal emissions warranty (8 years/80,000 miles for catalytic converters and ECM). Check with your dealer.
Don't Guess - Get Professional Diagnosis
Code P0455 can have multiple causes. Our diagnostic process ensures we fix the right problem the first time.