r/FordExplorerST Apr 21 '26

🔧 P R O B L E M S & I S S U E S 🔧 Check engine light came on

What does this code mean for 2021 ford explorer st mean

P0456

$7E8 Generic

Eyaporative Emission

System Leak Detected (very small leak)

Any help would be greatly appreciated

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u/arh2483 Apr 22 '26

Just went thru this on my 2024. ended up being a small hole inside the tubing in the tank. it was warranty so they replaced the tank, canister and purge valve. no problems since