Some 2017 Escape and MKC vehicles equipped with a 1.5L, 2.0L or 2.3L engine may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0455, P0456, P144C and/or P1450 stored in the powertrain control module (PCM) memory. Vehicles may also exhibit a rough idle and/or slow fuel fill concern. If normal diagnosis leads to the replacement of the canister purge valve then inspect for the presence of liquid fuel in the vapor lines at the EVAP canister purge valve and the EVAP canister. Liquid fuel should not be present in the EVAP canister purge valve, EVAP canister or any of the vapor lines. Engineering is investigating this concern. Monitor OASIS for updates.
