My son has a 2019 2.3 l ecoboost mustang. It starting losing coolant and white smoke out the exhaust. Assumed head gasket. Bought a $140 head gasket and $185 Arp studs. Had garage pick it up and told them we thought it was a blown head gasket. It had all the symptoms. They called back and said they came to the conclusion it was the turbo. $1900 later got the cat and the same thing. Consuming coolant and this time it was hard to start sometime. Code said multiple misfires. The garage refused to do anything. Looks like we'll be going to court. Anyway I tore the engine down and sure enough the gasket was blown at the #2 cylinder and the head had a gouge in it. I guess from driving it like that. Had the head resurfaced and put it all back together with an oil change. Took it for a test and smelled antifreeze from somewhere. No leaks visible. Nothing on the ground but it would lose about a pound of pressure per minute. Never could find the leak. Continued driving it like that and it threw a code of random misfire. It would miss about 5 seconds on avg. He drove it to work and everything was running fine then coming home and out of nowhere it started rattling. Towed it home and checked the oil and seen lots of metal shavings in the oil. No light ever came on. Oil was good. Fixing to tear back into it again but wanted to know if anybody could offer me any advice other than don't buy another ecoboost