p0456
Moderate
Ford · Sedans & Cars
EVAP System Leak Detected (small leak)
Quick Answer
Error code P0456 on your Ford Sedans & Cars means: EVAP System Leak Detected (small leak). This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Tighten fuel cap and rescan
2
Visually inspect EVAP hoses
3
Look for cracks in canister
4
Smoke test if leak persists
5
Replace damaged components
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 (optional)
EVAP hoses (optional)
Charcoal canister (optional)
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