I have take my GMC Yukon to three different mechanics and Quality mechanic were the ones who actually made updates to my Power Control Module where the other mechanics did not even attempt that after, I asked them to do that very same function instead I got A quote for an additional $7000 to basically rebuild my engine where the quality mechanics were able to solve my misfiring issues. Also, my car did not start the day after I picked it up and when it did, I drove it back there and they were kind enough to share the codes which was Auntie theft code and provided me a locksmith that can fix this issue. These guys will now be the mechanics to always service my 2005 GMC Yukon, Denali, and all of my other vehicles in the future. I learned about this mechanic shop through three of my friends that recommended them.