I have a 2017 Chevy Trax. When I was warming it up this morning it made a sort of metal scraping sound but went away soon after. I went to work and on my way home from work I noticed the noise again but this time it didn’t go away. Then it started cutting out and a very rough idle. Now when I start it the noise is very loud. The only way I know to describe the sounds is a loud metal scraping or almost a rattle. Please help!!