Ford EcoBoost 1.5l block has design flaws, causing coolant to enter into the block which causes the car to studder and reduce speed due to a misfire happening in the engine. Inspection upon request approved. Car acted completely fine, as we entered onto the highway we started to pick up speed as traffic is very fast, about 100 yards after entering the highway the vehicle failed causing sudden reduce engine performance. Traffic caught up to us as we veered to the far right shoulder, almost getting rear ended and causing a multiple car pileup. Car was towed to the Ford dealership for diagnosis, that was when ford told us this is a common issue on 1.5l EcoBoost’s and common on all of the EcoBoost. There was a recall for this issue, but it does not pertain to this VIN due to the build location? There were no warning signs, no messages or any other symptoms to know this was going to happen. Ford knows about this EcoBoost problem and has made a new block to replace the design flawed 1.5l EcoBoost, but no recall on for anything in relation to this. Ford didn’t notify us about this issue, which very easily could have ended in a horrible car accident and the death of the multiple people in the vehicle when it failed. THIS IS A HUGE SAFETY CONCERN AND FORD SHOULD TAKE FULL RESPONSIBILITY FOR THERE POORLY DESIGNED ENGINES! I’m very lucky my mother wasn’t driving, as this could have ended very horribly.