He is a horrible person who puts used parts or wrong parts and claims they are new. Took him 3 of my vehicles within a short period of time, and each one failed just as quickly. My new mechanic said I was lucky I was not in a serious accident. One of his ex mechanics wouldn't work on the 2nd one because he recognized it and knew that Luis had screwed us. The 3rd one failed within 1 mile of his shop. I'm suing him so if anyone else has suffered at his hands, take him to court and make him pay you back!