Take a look under the hood of just about every GM vehicle for the past 15 years with GM Performance presented by veteran instructor Wally Mouradian. This class goes into great detail about the way to research, diagnose and solve almost every GM system. System and diagnostic training is explained in the ignition, Fuel, Air and ignition systems along with PCM strategies and common trouble codes explained. This class is over 3 hours and comes in DVD and online formats along with a study guide, knowledge assessment and a certificate of completion for our online users.