p0455
Easy Fix
Dodge · SUVs
Evaporative Emission Control System Leak Detected (Gross Leak)
Quick Answer
Error code P0455 on your Dodge SUVs means: Evaporative Emission Control System Leak Detected (Gross Leak). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Check fuel cap for damage and proper seal
2
Inspect fuel lines and connections
3
Check purge control valve operation
4
Inspect charcoal canister
5
Use smoke test to locate leaks
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
Fuel cap
Fuel hoses
Purge control valve
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