ford recalls more than 255 000 carsagainover engine stall riskFord is recalling 255,404 Focus models in the United States because a previously repaired fuel-system issue may not have been fixed correctly.The recall affects certain 2012-2018 Ford Focus vehicles, according to the National Highway Traffic Safety Administration. The problem involves the canister purge valve, which can malfunction and potentially cause the engine to stall while the vehicle is being driven.I performed the original recall numerous times during the 6 months I spent wrenching in a Ford dealership before I came to my senses. It was a quick way to clock easy time flat rate-plug the computer in, inspect the plastic fuel tank for deformities, and install the new purge valve while the software updates.ford recalls more than 255 000 carsagainover engine stall riskAccording to the recall documents, Ford says some vehicles did not have the correct software update applied, but were recorded as having the repair completed. Because the correct software may not be installed, the Powertrain Control Module may not be able to detect a stuck Canister Purge Valve.AdvertisementAdvertisementNHTSA says affected vehicles may show signs of the issue through an illuminated Check Engine light. Drivers may also notice inaccurate fuel gauge readings, which can make it harder to know how much fuel is actually in the tank.Ford dealers will update the powertrain control module software free of charge.Become an AutoGuide insider. Get the latest from the automotive world first by subscribing to our newsletter here.