p0455
Moderate
Dodge · Sedans & Muscle Cars
Evaporative Emission System Leak Detected (Large)
Quick Answer
Error code P0455 on your Dodge Sedans & Muscle Cars means: Evaporative Emission System Leak Detected (Large). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Check and tighten fuel cap
2
Perform smoke test on fuel system
3
Inspect fuel lines for cracks
4
Test charcoal canister and purge valve
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Fuel cap
Fuel lines
Purge control valve
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