12’ 3.5l Ecoboost P0455/P0456
#1
12’ 3.5l Ecoboost P0455/P0456
Truck will switch between a gross and small evap leak. Every once in a while will read “check fuel inlet” on message center. Previously replaced filler neck, but DTC returnes. Any trending evap problems known? Canister Purge Valve? Thanks in advance