Initial Inspection and Diagnostic Overview

Diagnostic Starting Point - Engine Mechanical

Begin the system diagnosis by reviewing the Disassembled Views (L76) ([1][2]Diagrams)Disassembled Views (6.2L LS3) ([1][2]Diagrams) , Engine Component Description (L76) (Engine Component Description)Engine Component Description (6.2L LS3) (Engine Component Description) , Lubrication Description (L76) (Description and Operation)Lubrication Description (6.2L LS3) (Description and Operation) , and Cylinder Deactivation (Active Fuel Management) System Description (Cylinder Deactivation (Active Fuel Management) System Description). Reviewing the description and operation information helps you determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the description and operation information also helps you determine if the condition described by the customer is normal operation. Refer to Symptoms - Engine Mechanical (- Symptoms - Engine Mechanical) in order to identify the correct procedure for diagnosing the system and where the procedure is located.